Passerine

Passerine Temporal range: Eocene-Recent, 52.5–0  Ma PreꞒ Ꞓ O S D C P T J K Pg N
Clockwise from top right: Palestine sunbird (Cinnyris osea), blue jay (Cyanocitta cristata), house sparrow (Passer domesticus), great tit (Parus major), hooded crow (Corvus cornix), southern masked weaver (Ploceus velatus)
Song of a purple-crowned fairywren (Malurus coronatus)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Clade:	Psittacopasserae
Order:	Passeriformes Linnaeus, 1758
Suborders
Acanthisitti Eupasseres Tyranni Passeri and see text
Diversity
Roughly 140 families, 6,500 species

A passerine /ˈpæsəraɪn/ is any bird of the order Passeriformes ( /ˈpæsərɪfɔːrmiːz/ , Latin passer (“sparrow”) + formis (“-shaped”)), which includes more than half of all bird species. Sometimes known as perching birds or songbirds, passerines are distinguished from other orders of birds by the arrangement of their toes (three pointing forward and one back), which facilitates perching.

With more than 140 families and some 6,500 identified species, ^[1] Passeriformes is the largest order of birds and among the most diverse orders of terrestrial vertebrates, representing 60% of birds. ^{[2] [3]} Passerines are divided into three suborders: Acanthisitti (New Zealand wrens), Tyranni (suboscines) and Passeri (oscines). ^{[4] [5]} The passerines contain several groups of brood parasites such as the viduas, cuckoo-finches, and the cowbirds. Most passerines are omnivorous, while the shrikes are carnivorous.

The terms "passerine" and "Passeriformes" are derived from the scientific name of the house sparrow, Passer domesticus, and ultimately from the Latin term passer, which refers to sparrows and similar small birds.

Description

The order is divided into three suborders, Tyranni (suboscines), Passeri (oscines), and the basal Acanthisitti. ^[6] Oscines have the best control of their syrinx muscles among birds, producing a wide range of songs and other vocalizations, though some of them, such as the crows, do not sound musical to human beings. Some, such as the lyrebird, are accomplished imitators. ^[7] The New Zealand wrens are tiny birds restricted to New Zealand, at least in modern times; they were long placed in Passeri.

Pterylosis or the feather tracts in a typical passerine

Most passerines are smaller than typical members of other avian orders. The heaviest and altogether largest passerines are the thick-billed raven ^[8] and the larger races of common raven, each exceeding 1.5 kg (3.3 lb) and 70 cm (28 in). The superb lyrebird and some birds-of-paradise, due to very long tails or tail coverts, are longer overall. The smallest passerine is the short-tailed pygmy tyrant, at 6.5 cm (2.6 in) and 4.2 g (0.15 oz). ^[9]

Anatomy

The foot of a passerine has three toes directed forward and one toe directed backward, called anisodactyl arrangement, and the hind toe (hallux) joins the leg at approximately the same level as the front toes. This arrangement enables passerine birds to easily perch upright on branches. The toes have no webbing or joining, but in some cotingas, the second and third toes are united at their basal third.

The leg of passerine birds contains an additional special adaptation for perching. A tendon in the rear of the leg running from the underside of the toes to the muscle behind the tibiotarsus will automatically be pulled and tighten when the leg bends, causing the foot to curl and become stiff when the bird lands on a branch. This enables passerines to sleep while perching without falling off. ^{[10] [11]}

Most passerine birds have 12 tail feathers but the superb lyrebird has 16, ^[12] and several spinetails in the family Furnariidae have 10, 8, or even 6, as is the case of Des Murs's wiretail. Species adapted to tree trunk climbing such as woodcreeper and treecreepers have stiff tail feathers that are used as props during climbing. Extremely long tails used as sexual ornaments are shown by species in different families. A well-known example is the long-tailed widowbird.

Eggs and nests

See also: List of brood parasitic passerines

The chicks of passerines are altricial: blind, featherless, and helpless when hatched from their eggs. Hence, the chicks require extensive parental care. Most passerines lay coloured eggs, in contrast with nonpasserines, most of whose eggs are white except in some ground-nesting groups such as Charadriiformes and nightjars, where camouflage is necessary, and in some parasitic cuckoos, which match the passerine host's egg. The vinous-throated parrotbill has two egg colours, white and blue, to deter the brood parasitic common cuckoo.

Clutches vary considerably in size: some larger passerines of Australia such as lyrebirds and scrub-robins lay only a single egg, most smaller passerines in warmer climates lay between two and five, while in the higher latitudes of the Northern Hemisphere, hole-nesting species like tits can lay up to a dozen and other species around five or six. The family Viduidae do not build their own nests, instead, they lay eggs in other birds' nests.

Origin and evolution

The evolutionary history of the passerine families and the relationships among them remained rather mysterious until the late 20th century. In many cases, passerine families were grouped together on the basis of morphological similarities that, it is now believed, are the result of convergent evolution, not a close genetic relationship. For example, the wrens of the Americas and Eurasia; those of Australia; and those of New Zealand look superficially similar and behave in similar ways, and yet belong to three far-flung branches of the passerine family tree; they are as unrelated as it is possible to be while remaining Passeriformes. ^{[lower-alpha 1]}

Advances in molecular biology and improved paleobiogeographical data gradually are revealing a clearer picture of passerine origins and evolution that reconciles molecular affinities, the constraints of morphology and the specifics of the fossil record. ^{[14] [15]} The first passerines are now thought to have evolved in Gondwana (in the Southern Hemisphere) in the late Paleocene or early Eocene, around 50 million years ago. ^{[5] [15]}

The initial split was between the New Zealand wrens (Acanthisittidae) and all other passerines (Eupasserine), and the second split involved the Tyranni (suboscines) and the Passeri (oscines or songbirds). ^[3] A rupture of the Gondwanan continent caused the core split of the Eupasseres, which were divided into this groups, one in Western Gondwana (Tyranni) and the other in Eastern Gondwana (Passeri). ^[2] Passeri experienced a great radiation of forms out of the Australian continent. A major branch of the Passeri, parvorder Passerida, expanded deep into Eurasia and Africa, where a further explosive radiation of new lineages occurred. ^[15] This eventually led to three major Passerida lineages comprising about 4,000 species, which in addition to the Corvida and numerous minor lineages make up songbird diversity today. Extensive biogeographical mixing happens, with northern forms returning to the south, southern forms moving north, and so on. ^[3]

Fossil record

Earliest passerines

Male superb lyrebird (Menura novaehollandiae): This very primitive songbird shows strong sexual dimorphism, with a peculiarly apomorphic display of plumage in males.

Perching bird osteology, especially of the limb bones, is rather diagnostic. ^{[16] [17] [18]} However, the early fossil record is poor because the first Passeriformes were apparently on the small side of the present size range, and their delicate bones did not preserve well. Queensland Museum specimens F20688 (carpometacarpus) and F24685 (tibiotarsus) from Murgon, Queensland, are fossil bone fragments initially assigned to Passeriformes. ^[16] However, the material is too fragmentary and their affinities have been questioned. ^[19] Several more recent fossils from the Oligocene of Europe, such as Wieslochia , Jamna , Resoviaornis and Crosnoornis , ^[20] are more complete and definitely represent early passeriforms, although their exact position in the evolutionary tree is not known.

From the Bathans Formation at the Manuherikia River in Otago, New Zealand, MNZ S42815 (a distal right tarsometatarsus of a tui-sized bird) and several bones of at least one species of saddleback-sized bird have recently been described. These date from the Early to Middle Miocene (Awamoan to Lillburnian, 19–16 mya). ^[21]

Early European passerines

Wieslochia fossil

In Europe, perching birds are not too uncommon in the fossil record from the Oligocene onward, but most are too fragmentary for a more definite placement:

• Wieslochia (Early Oligocene of Frauenweiler, Germany)
• Resoviaornis (Early Oligocene of Wola Rafałowska, Poland)
• Jamna (Early Oligocene of Jamna Dolna, Poland)
• Winnicavis (Early Oligocene of Lower Silesian Voivodeship, Poland)
• Crosnoornis (Early OLigocene of Poland)
• Passeriformes gen. et sp. indet. (Early Oligocene of Luberon, France) – suboscine or basal ^{[lower-alpha 2]}
• Passeriformes gen. et spp. indet. (Late Oligocene of France) – several suboscine and oscine taxa ^{[23] [18]}
• Passeriformes gen. et spp. indet. (Middle Miocene of France and Germany) – basal? ^{[lower-alpha 3]}
• Passeriformes gen. et spp. indet. (Sajóvölgyi Middle Miocene of Mátraszőlős, Hungary) – at least 2 taxa, possibly 3; at least one probably Oscines. ^{[lower-alpha 4]}
• Passeriformes gen. et sp. indet. (Middle Miocene of Felsőtárkány, Hungary) – oscine? ^{[lower-alpha 5]}
• Passeriformes gen. et sp. indet. (Late Miocene of Polgárdi, Hungary) – Sylvioidea (Sylviidae? Cettiidae?) ^[26]

That suboscines expanded much beyond their region of origin is proven by several fossil from Germany such as a broadbill (Eurylaimidae) humerus fragment from the Early Miocene (roughly 20 mya) of Wintershof, Germany, the Late Oligocene carpometacarpus from France listed above, and Wieslochia , among others. ^{[17] [15]} Extant Passeri super-families were quite distinct by that time and are known since about 12–13 mya when modern genera were present in the corvoidean and basal songbirds. The modern diversity of Passerida genera is known mostly from the Late Miocene onwards and into the Pliocene (about 10–2 mya). Pleistocene and early Holocene lagerstätten (<1.8 mya) yield numerous extant species, and many yield almost nothing but extant species or their chronospecies and paleosubspecies.

American fossils

See also: Late Quaternary prehistoric birds

In the Americas, the fossil record is more scant before the Pleistocene, from which several still-existing suboscine families are documented. Apart from the indeterminable MACN-SC-1411 (Pinturas Early/Middle Miocene of Santa Cruz Province, Argentina), ^{[lower-alpha 6]} an extinct lineage of perching birds has been described from the Late Miocene of California, United States: the Palaeoscinidae with the single genus Palaeoscinis . "Palaeostruthus" eurius (Pliocene of Florida) probably belongs to an extant family, most likely passeroidean.

Systematics and taxonomy

Acanthisitti – New Zealand wrens (1 family containing 4 species)       Tyranni – suboscines (16 families containing 1,356 species)     Passeri – oscines (125 families containing 5,158 species)

Phylogenetic relationship of the suborders within the Passeriformes. The numbers are from the list published by the International Ornithologists' Union in January 2020. [1] [29]

The Passeriformes is currently divided into three suborders: Acanthisitti (New Zealand wrens), Tyranni (suboscines) and Passeri (oscines). The Passeri has been traditionally subdivided into two major groups recognized now as Corvida and Passerida respectively containing the large superfamilies Corvoidea and Meliphagoidea, as well as minor lineages, and the superfamilies Sylvioidea, Muscicapoidea, and Passeroidea but this arrangement has been found to be oversimplified. Since the mid-2000s, literally, dozens of studies have investigated the phylogeny of the Passeriformes and found that many families from Australasia traditionally included in the Corvoidea actually represent more basal lineages within oscines. Likewise, the traditional three-superfamily arrangement within the Passeri has turned out to be far more complex and will require changes in classification.

Major "wastebin" families such as the Old World warblers and Old World babblers have turned out to be paraphyletic and are being rearranged. Several taxa turned out to represent highly distinct lineages, so new families had to be established, some of them – like the stitchbird of New Zealand and the Eurasian bearded reedling – monotypic with only one living species. ^[30] In the Passeri alone, a number of minor lineages will eventually be recognized as distinct superfamilies. For example, the kinglets constitute a single genus with less than 10 species today but seem to have been among the first perching bird lineages to diverge as the group spread across Eurasia. No particularly close relatives of them have been found among comprehensive studies of the living Passeri, though they might be fairly close to some little-studied tropical Asian groups. Nuthatches, wrens, and their closest relatives as currently grouped in a distinct super-family Certhioidea.

Taxonomic list of Passeriformes families

New Zealand rock wren (Xenicus gilviventris), one of the two surviving species of suborder Acanthisitti

This list is in taxonomic order, placing related families next to one another. The families listed are those recognised by the International Ornithologists' Union (IOC). ^[1] The order and the division into infraorders, parvorders and superfamilies follows the phylogenetic analysis published by Carl Oliveros and colleagues in 2019. ^{[29] [lower-alpha 7]} The relationships between the families in the suborder Tyranni (suboscines) were all well determined but some of the nodes in Passeri (oscines) were unclear owing to the rapid splitting of the lineages. ^[29]

Suborder Acanthisitti

• Acanthisittidae: New Zealand wrens

Javan banded pitta (Hydrornis guajanus), an Old World suboscine.

Andean cock-of-the-rock (Rupicola peruvianus) a New World suboscine

Suborder Tyranni (suboscines)

• Infraorder Eurylaimides : Old World suboscines

• Philepittidae: asities
• Eurylaimidae: typical broadbills
• Calyptomenidae: African and green broadbills
• Sapayoidae: broad-billed sapayoa
• Pittidae: pittas

• Infraorder Tyrannides : New World suboscines

• Parvorder Furnariida

• Melanopareiidae: crescentchests
• Conopophagidae: gnateaters and gnatpittas
• Thamnophilidae: antbirds
• Grallariidae: antpittas
• Rhinocryptidae: typical tapaculos
• Formicariidae: antthrushes
• Furnariidae : ovenbirds and woodcreepers

• Parvorder Tyrannida

• Pipridae: manakins
• Cotingidae: cotingas
• Tityridae : tityras and allies
• Tyrannidae : tyrant flycatchers

Suborder Passeri (oscines)

Male stitchbird or hihi (Notiomystis cincta) showing convergence with honeyeaters

• Atrichornithidae: scrub-birds
• Menuridae: lyrebirds
• Climacteridae: Australian treecreepers
• Ptilonorhynchidae: bowerbirds
• Maluridae: fairywrens, emu-wrens and grasswrens
• Dasyornithidae: bristlebirds
• Pardalotidae: pardalotes
• Acanthizidae: scrubwrens, thornbills, and gerygones
• Meliphagidae: honeyeaters
• Pomatostomidae: pseudo-babblers
• Orthonychidae: logrunners

Male regent bowerbird (Sericulus chrysocephalus, Ptilonorhynchidae)

• Infraorder Corvides

• Cinclosomatidae: jewel-babblers, quail-thrushes
• Campephagidae: cuckooshrikes and trillers
• Mohouidae: whiteheads
• Neosittidae: sittellas

• Superfamily Orioloidea ^{[lower-alpha 8]}

• Psophodidae: whipbirds
• Eulacestomidae: wattled ploughbills
• Falcunculidae: shriketit
• Oreoicidae: Australo-Papuan bellbirds
• Paramythiidae: painted berrypeckers
• Vireonidae: vireos
• Pachycephalidae: whistlers
• Oriolidae: Old World orioles and figbirds

• Superfamily Malaconotoidea ^{[lower-alpha 9]}

Tiny goldcrest (Regulus regulus) belongs to a minor but highly distinct lineage of Passeri

• Machaerirhynchidae: boatbills
• Artamidae: woodswallows, butcherbirds, currawongs, and Australian magpie
• Rhagologidae: mottled berryhunter
• Malaconotidae: puffback shrikes, bush shrikes, tchagras, and boubous
• Pityriaseidae: bristlehead
• Aegithinidae: ioras
• Platysteiridae: wattle-eyes and batises
• Vangidae: vangas

• Superfamily Corvoidea ^{[lower-alpha 10]}

• Rhipiduridae: fantails
• Dicruridae: drongos
• Monarchidae: monarch flycatchers
• Ifritidae: blue-capped ifrit
• Paradisaeidae: birds-of-paradise
• Corcoracidae: white-winged chough and apostlebird
• Melampittidae: melampittas
• Laniidae: shrikes
• Corvidae : crows, ravens, and jays

Reed warblers, such as this Blyth's reed warbler (Acrocephalus dumetorum), are now in the Acrocephalidae

• Infraorder Passerides

• Cnemophilidae: satinbirds
• Melanocharitidae: berrypeckers and longbills
• Callaeidae: New Zealand wattlebirds
• Notiomystidae: stitchbird
• Petroicidae: Australian robins
• Eupetidae: rail-babbler
• Picathartidae: rockfowl
• Chaetopidae: rock-jumpers

blue tit (Cyanistes caeruleus) and its relatives stand well apart from rest of the Sylvioidea sensu lato

• Parvorder Sylviida ^{[lower-alpha 11]}

• Hyliotidae: hyliotas
• Stenostiridae: fairy flycatchers
• Paridae: tits, chickadees and titmice
• Remizidae: penduline tits
• Panuridae: bearded reedling
• Alaudidae: larks
• Nicatoridae: nicators
• Macrosphenidae: crombecs and African warblers
• Cisticolidae: cisticolas and allies

Brown-headed nuthatch (Sitta pusilla), nuthatches can climb downwards head-first

• Superfamily Locustelloidea

• Acrocephalidae : reed warblers, Grauer’s warbler and allies
• Locustellidae: grassbirds and allies
• Donacobiidae: black-capped donacobius
• Bernieridae: Malagasy warblers

—

• Pnoepygidae: wren-babblers
• Hirundinidae: swallows and martins

Hermit thrush (Catharus guttatus), like many Muscicapoidea a stout and cryptic bird with complex vocalizations.

• Superfamily Sylvioidea

• Pycnonotidae: bulbuls
• Sylviidae: sylviid babblers
• Paradoxornithidae: parrotbills and myzornis
• Zosteropidae: white-eyes
• Timaliidae: tree babblers
• Leiothrichidae: laughingthrushes and allies
• Alcippeidae: Alcippe fulvettas
• Pellorneidae: ground babblers

Like these male (right) and female Gouldian finches (Erythrura gouldiae), many Passeroidea are very colorful

• Superfamily Aegithaloidea

• Phylloscopidae: leaf-warblers and allies
• Hyliidae: hylias
• Aegithalidae: long-tailed tits or bushtits
• Scotocercidae: streaked scrub warbler
• Cettiidae: Cettia bush warblers and allies
• Erythrocercidae: yellow flycatchers

Lesser striped swallow (Cecropis abyssinica), showing some apomorphies of its ancient yet highly advanced lineage.

• Parvorder Muscicapida

• Superfamily Bombycilloidea

• Dulidae: palmchat
• Bombycillidae: waxwings
• Ptiliogonatidae: silky flycatchers
• Hylocitreidae: hylocitrea
• Hypocoliidae: hypocolius
• Mohoidae: oos

Gran Canaria blue chaffinch (male)

• Superfamily Muscicapoidea

• Elachuridae: spotted elachura
• Cinclidae: dippers
• Muscicapidae: Old World flycatchers and chats
• Turdidae: thrushes and allies
• Buphagidae: oxpeckers
• Sturnidae: starlings and rhabdornis
• Mimidae: mockingbirds and thrashers

—

• Regulidae: goldcrests and kinglets

• Superfamily Certhioidea

• Tichodromidae: wallcreeper
• Sittidae: nuthatches
• Certhiidae : treecreepers
• Polioptilidae: gnatcatchers
• Troglodytidae: wrens

• Parvorder Passerida – previously known as the superfamily Passeroidea ^[32]

• Promeropidae: sugarbirds
• Modulatricidae: dapple-throat and allies
• Nectariniidae: sunbirds
• Dicaeidae: flowerpeckers
• Chloropseidae: leafbirds
• Irenidae: fairy-bluebirds
• Peucedramidae: olive warbler
• Urocynchramidae: Przewalski's finch
• Ploceidae: weavers
• Viduidae: indigobirds and whydahs
• Estrildidae: waxbills, munias and allies
• Prunellidae: accentors
• Passeridae: Old World sparrows and snowfinches
• Motacillidae: wagtails and pipits
• Fringillidae: finches and euphonias

• Superfamily Emberizoidea – previously known as the New World nine-primaried oscines ^{[33] [lower-alpha 12]}

• Rhodinocichlidae: rosy thrush-tanager
• Calcariidae: longspurs and snow buntings
• Emberizidae: buntings
• Cardinalidae: cardinals
• Mitrospingidae: mitrospingid tanagers
• Thraupidae: tanagers and allies
• Passerellidae: New World sparrows, bush tanagers
• Parulidae: New World warblers
• Icteriidae: yellow-breasted chat
• Icteridae: grackles, New World blackbirds, and New World orioles
• Calyptophilidae: chat-tanagers
• Zeledoniidae: wrenthrush
• Teretistridae: Cuban warblers ^{[lower-alpha 13]}
• Nesospingidae: Puerto Rican tanager
• Spindalidae: spindalises
• Phaenicophilidae: Hispaniolan tanagers

Phylogeny

Living Passeriformes based on the "Taxonomy in Flux family phylogenetic tree" by John Boyd. ^[35]

Acanthisitti   Acanthisittidae     Eupasseres Tyranni Eurylaimides   ?Sapayoidae       Calyptomenidae     Pittidae         Philepittidae     Eurylaimidae       Tyrannides Tyrannida   Pipridae       Cotingidae         Tityridae       Oxyruncidae     Onychorhynchidae           Tyrannidae       Pipritidae       Platyrinchidae       Tachurididae     Rhynchocyclidae                 Furnariida     Melanopareiidae       Thamnophilidae     Conopophagidae           Grallariidae       Rhinocryptidae       Formicariidae     Furnariidae               Passeri Menurides   Atrichornithidae     Menuridae     Euoscines Climacterides   Ptilonorhynchidae     Climacteridae       Meliphagides   Maluridae       Dasyornithidae       Pardalotidae     Meliphagidae           Orthonychides   Orthonychidae     Pomatostomidae       Corvides   Cinclosomatidae       Campephagidae         Neosittidae     Mohouidae       Orioloidea   Eulacestomidae         Psophodidae       Falcunculidae     Oreoicidae             Paramythiidae       Pteruthiidae     Vireonidae           Pachycephalidae     Oriolidae             Malaconotoidea   Machaerirhynchidae       Artamidae       Rhagologidae         Platysteiridae     Vangidae         Aegithinidae       Pityriaseidae     Malaconotidae               Corvoidea   ?Dicruridae       Rhipiduridae     Lamproliidae           Monarchidae       Laniidae     Corvidae           Ifritidae       Melampittidae       Corcoracidae     Paradisaeidae                       Passerides Melanocharitida Melanocharitidae     Cnemophilida Cnemophilidae     Petroicida   Petroicidae       Notiomystidae     Callaeidae         Eupetida   Picathartidae       Chaetopidae     Eupetidae         Core Passerides

Core Passerides

Sylviida Paroidea   Stenostiridae       Hyliotidae       Remizidae     Paridae         Sylvioidea     Nicatoridae       Panuridae     Alaudidae           Macrosphenidae         Cisticolidae         Pnoepygidae     Acrocephalidae         Locustellidae       Donacobiidae     Bernieridae               Hirundinidae     Pycnonotidae         Phylloscopidae       Cettiidae       Hyliidae     Aegithalidae               Sylviidae     Paradoxornithidae         Zosteropidae       Timaliidae       Pellorneidae     Leiothrichidae                         Muscicapida Reguloidea Regulidae   Bombycilloidea   Elachuridae     Mohoidae       Ptiliogonatidae       Bombycillidae       Dulidae     Hypocoliidae           Certhioidea     Tichodromadidae     Sittidae         Certhiidae       Troglodytidae     Polioptilidae         Muscicapoidea     Cinclidae       Turdidae     Muscicapidae           Buphagidae       Mimidae     Sturnidae           Passerida   Promeropidae       Arcanatoridae         Dicaeidae     Nectariniidae         Urocynchramidae         Irenidae     Chloropseidae           Peucedramidae     Prunellidae       Estrild clade   Ploceidae       Viduidae     Estrildidae       Passerid clade   Passeridae       Motacillidae       Fringillidae       Calcariidae       Rhodinocichlidae         Emberizidae     Passerellidae       ? Zeledonia     ? Teretistris     Phaenicophilidae       Icteridae     Parulidae             Mitrospingidae     Cardinalidae     Thraupidae

Notes

1. The name wren has been applied to other, unrelated birds in Australia and New Zealand. The 27 Australasian "wren" species in the family Maluridae are unrelated, as are the New Zealand wrens in the family Acanthisittidae; the antwrens in the family Thamnophilidae; and the wren-babblers of the families Timaliidae, Pellorneidae, and Pnoepygidae. For the monophyly of the "true wrens", Troglodytidae, see Barker 2004 ^[13]
2. Specimen SMF Av 504. A flattened right hand of a passerine perhaps 10 cm long overall. If suboscine, perhaps closer to Cotingidae than to Eurylaimides. ^{[22] [18]}
3. Specimens SMF Av 487–496; SMNS 86822, 86825-86826; MNHN SA 1259–1263: tibiotarsus remains of small, possibly basal Passeriformes. ^[17]
4. A partial coracoid of a probable Muscicapoidea, possibly Turdidae; distal tibiotarsus and tarsometatarsus of a smallish to mid-sized passerine that may be the same as the preceding; proximal ulna and tarsometatarsus of a Paridae-sized passerine. ^{[24] [25]}
5. A humerus diaphysis piece of a swallow-sized passerine. ^[26]
6. Distal right humerus, possibly suboscine. ^{[27] [28]}
7. Oliveros et al (2019) use the list of families published by Dickinson and Christidis in 2014. ^{[29] [31]} Oliveros et al include 8 families that are not included on the IOC list. These are not shown here. By contrast, the IOC list includes 15 families that are not present in Dickinson and Christidis. In 13 of these cases, the position of the additional family in the taxonomic order can be determined from the species included by Oliveros and colleagues in their analysis. No species in the families Alcippeidae and Teretistridae were sampled by Oliveros et al so their position is uncertain. ^{[1] [29]}
8. The order of the families within the superfamily Orioloidea is uncertain. ^[29]
9. The order of the families within the superfamily Malaconotoidea is uncertain. ^[29]
10. The order of the families within the superfamily Corvoidea is uncertain. ^[29]
11. The taxonomic sequence of the superfamilies Locustelloidea, Sylvioidea and Aegithaloidea is uncertain, although the order of the families within each of the superfamilies is well determined. ^[29]
12. The order of some of the families within the superfamily Emberizoidea is uncertain. ^[29]
13. The family Teretistridae (Cuban warblers) is tentatively placed here. The family was not included in the analysis published by Oliveros et al (2019). ^[29] Dickinson and Christidis (2014) considered the genus Teretistris Incertae sedis . ^[34] Barker et al (2013) found that Teretistridae is closely related to Zeledoniidae. ^[33]

References

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2. Ericson, P.G.P. et al. (2003) Evolution, biogeography, and patterns of diversification in passerine birds. J. Avian Biol, 34:3-15.
3. Selvatti, A.P. et al. (2015) A Paleogene origin for crown passerines and the diversification of the Oscines in the New World. Molecular Phylogenetics and Evolution, 88:1-15.
4. Barker, F. Keith; Barrowclough, George F.; Groth, Jeff G. (2002). "A phylogenetic hypothesis for passerine birds: Taxonomic and biogeographic implications of an analysis of nuclear DNA sequence data". Proceedings of the Royal Society B: Biological Sciences. 269 (1488): 295–308. doi:10.1098/rspb.2001.1883. PMC   1690884 . PMID   11839199.
5. Ericson, P.G.; Christidis, L.; Cooper, A.; Irestedt, M.; Jackson, J.; Johansson, U.S.; Norman, J.A. (7 February 2002). "A Gondwanan origin of passerine birds supported by DNA sequences of the endemic New Zealand wrens". Proceedings of the Royal Society B . 269 (1488): 235–241. doi:10.1098/rspb.2001.1877. PMC   1690883 . PMID   11839192.
6. Chatterjee, Sankar (2015). The Rise of Birds: 225 Million Years of Evolution. JHU Press. pp. 206–207. ISBN   9781421415901.
7. Winkler, D. W., S. M. Billerman, and I.J. Lovette (2020). Lyrebirds (Menuridae), version 1.0. In Birds of the World (S. M. Billerman, B. K. Keeney, P. G. Rodewald, and T. S. Schulenberg, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.menuri1.01
8. Madge, S. (2020). Thick-billed Raven (Corvus crassirostris), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.thbrav1.01
9. Clock, B. (2020). Short-tailed Pygmy-Tyrant (Myiornis ecaudatus), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.stptyr1.01
10. Stefoff, Rebecca (2008), The Bird Class, Marshall Cavendish Benchmark
11. Brooke, Michael and Birkhead, Tim (1991) The Cambridge Encyclopedia of Ornithology, Cambridge University Press ISBN   0521362059.
12. Jones, D. (2008) "Flight of fancy". Australian Geographic, (89), 18–19.
14. Dyke, Gareth J.; Van Tuinen, Marcel (June 2004). "The evolutionary radiation of modern birds (Neornithes): Reconciling molecules, morphology and the fossil record". Zoological Journal of the Linnean Society. 141 (2): 153–177. doi: 10.1111/j.1096-3642.2004.00118.x .
15. Claramunt, S.; Cracraft, J. (2015). "A new time tree reveals Earth history's imprint on the evolution of modern birds". Science Advances. 1 (11): e1501005. Bibcode:2015SciA....1E1005C. doi:10.1126/sciadv.1501005. PMC   4730849 . PMID   26824065.
16. Boles, Walter E. (1997). "Fossil songbirds (Passeriformes) from the Early Eocene of Australia". Emu . 97 (1): 43–50. doi:10.1071/MU97004.
17. Manegold, Albrecht; Mayr, Gerald & Mourer-Chauviré, Cécile (2004). "Miocene Songbirds and the Composition of the European Passeriform Avifauna". Auk . 121 (4): 1155–1160. doi:10.1642/0004-8038(2004)121[1155:MSATCO]2.0.CO;2.
18. Mayr, Gerald & Manegold, Albrecht (2006). "A Small Suboscine-like Passeriform Bird from the Early Oligocene of France". Condor . 108 (3): 717–720. doi: 10.1650/0010-5422(2006)108[717:ASSPBF]2.0.CO;2 .
19. Mayr, G (2013). "The age of the crown group of passerine birds and its evolutionary significance–molecular calibrations versus the fossil record". Systematics and Biodiversity. 11 (1): 7–13. doi:10.1080/14772000.2013.765521. S2CID   85167051.
20. Bochenski, Z.M., Tomek, T., Bujoczek, M. (2021) A new passeriform (Aves: Passeriformes) from the early Oligocene of Poland sheds light on the beginnings of Suboscines. J Ornithol. https://doi.org/10.1007/s10336-021-01858-0
21. Worthy, Trevor H.; Tennyson, A.J.D.; Jones, C.; McNamara, J.A.; Douglas, B.J. (2007). "Miocene waterfowl and other birds from central Otago, New Zealand". Journal of Systematic Palaeontology . 5 (1): 1–39. doi:10.1017/S1477201906001957. hdl: 2440/43360 . S2CID   85230857.
23. Hugueney, Marguerite; Berthet, Didier; Bodergat, Anne-Marie; Escuillié, François; Mourer-Chauviré, Cécile & Wattinne, Aurélia (2003). "La limite Oligocène-Miocène en Limagne: changements fauniques chez les mammifères, oiseaux et ostracodes des différents niveaux de Billy-Créchy (Allier, France)" [The Oligocene-Miocene boundary in Limagne: faunal changes in the mammals, birds and ostracods from the different levels of Billy-Créchy (Allier, France)]. Geobios . 36 (6): 719–731. doi:10.1016/j.geobios.2003.01.002.
26. Hír, János; Kókay, József; Venczel, Márton; Gál, Erika & GKessler, Eugén (2001). "Elõzetes beszámoló a felsõtárkányi "Güdör-kert" n. õslénytani lelõhelykomplex újravizsgálatáról" [A preliminary report on the revised investigation of the paleontological locality-complex "Güdör-kert" at Felsõtárkány, Northern Hungary](PDF). Folia Historico Naturalia Musei Matraensis. 25: 41–64.
29. Oliveros, C.H.; et al. (2019). "Earth history and the passerine superradiation". Proceedings of the National Academy of Sciences of the United States of America. 116 (16): 7916–7925. doi: 10.1073/pnas.1813206116 . PMC   6475423 . PMID   30936315.
30. The former does not even have recognized subspecies, while the latter is one of the most singular birds alive today. Good photos of a bearded reedling are for example here Archived 16 October 2007 at the Wayback Machine and here Archived 31 July 2008 at the Wayback Machine .
32. Cracraft, Joel (2014). "Avian higher-level relationships and classification: passeriformes". In Dickinson, E.C.; Christidis, L. (eds.). The Howard & Moore Complete Checklist of the Birds of the World. Volume 2: Passerines (4th ed.). Eastbourne, UK: Aves Press. pp. xvii-xxxiii [xxiv]. ISBN   978-0-9568611-2-2.
33. Barker, F.K.; Burns, K.J.; Klicka, J.; Lanyon, S.M.; Lovette, I.J. (2013). "Going to extremes: contrasting rates of diversification in a recent radiation of New World passerine birds". Systematic Biology. 62 (2): 298–320. doi: 10.1093/sysbio/sys094 . PMID   23229025.
35. John Boyd. "Taxonomy in Flux family phylogenetic tree" (PDF). Archived from the original (PDF) on 22 December 2015. Retrieved 17 December 2015.

Further reading

• Alström, Per; Ericson, Per G.P.; Olsson, Urban & Sundberg, Per (2006). "Phylogeny and classification of the avian super-family Sylvioidea". Molecular Phylogenetics and Evolution . 38 (2): 381–397. doi:10.1016/j.ympev.2005.05.015. PMID   16054402.
• Barker, F. Keith; Barrowclough, George F. & Groth, Jeff G. (2002). "A phylogenetic hypothesis for passerine birds: taxonomic and biogeographic implications of an analysis of nuclear DNA sequence data" (PDF). Proceedings of the Royal Society B . 269 (1488): 295–308. doi:10.1098/rspb.2001.1883. PMC   1690884 . PMID   11839199.
• Barker, F. Keith; Cibois, Alice; Schikler, Peter A.; Feinstein, Julie & Cracraft, Joel (2004). "Phylogeny and diversification of the largest avian radiation". PNAS . 101 (30): 11040–11045. Bibcode:2004PNAS..10111040B. doi:10.1073/pnas.0401892101. PMC   503738 . PMID   15263073. Supporting information
• Beresford, P.; Barker, F.K.; Ryan, P.G. & Crowe, T.M. (2005). "African endemics span the tree of songbirds (Passeri): molecular systematics of several evolutionary 'enigmas'". Proceedings of the Royal Society B . 272 (1565): 849–858. doi:10.1098/rspb.2004.2997. PMC   1599865 . PMID   15888418.
• Cibois, Alice; Slikas, Beth; Schulenberg, Thomas S. & Pasquet, Eric (2001). "An endemic radiation of Malagasy songbirds is revealed by mitochondrial DNA sequence data". Evolution . 55 (6): 1198–1206. doi:10.1554/0014-3820(2001)055[1198:AEROMS]2.0.CO;2. PMID   11475055.
• Ericson, Per G.P. & Johansson, Ulf S. (2003). "Phylogeny of Passerida (Aves: Passeriformes) based on nuclear and mitochondrial sequence data". Molecular Phylogenetics and Evolution . 29 (1): 126–138. doi:10.1016/S1055-7903(03)00067-8. PMID   12967614.
• Johansson, Ulf S. & Ericson, Per G.P. (2003). "Molecular support for a sister group relationship between Pici and Galbulae (Piciformes sensu Wetmore 1960)" (PDF). Journal of Avian Biology . 34 (2): 185–197. doi:10.1034/j.1600-048X.2003.03103.x.
• Jønsson, Knud A. & Fjeldså, Jon (2006). "A phylogenetic supertree of oscine passerine birds (Aves: Passeri)". Zoologica Scripta . 35 (2): 149–186. doi:10.1111/j.1463-6409.2006.00221.x. S2CID   85317440.
• Lovette, Irby J. & Bermingham, Eldredge (2000). "c-mos Variation in Songbirds: Molecular Evolution, Phylogenetic Implications, and Comparisons with Mitochondrial Differentiation". Molecular Biology and Evolution . 17 (10): 1569–1577. doi: 10.1093/oxfordjournals.molbev.a026255 . PMID   11018162.
• Mayr, Gerald (2016). Avian evolution: the fossil record of birds and its paleobiological significance. Chichester, West Sussex: John Wiley & Sons. ISBN   978-1-119-02076-9.
• Raikow, Robert J. (1982). "Monophyly of the Passeriformes: test of a phylogenetic hypothesis" (PDF). The Auk. 99 (3): 431–445. doi:10.1093/auk/99.3.431 (inactive 19 January 2021). Lay summary.

External links

The Wikibook Dichotomous Key has a page on the topic of: Passeriformes

• The dictionary definition of passerine at Wiktionary
• Media related to Passeriformes at Wikimedia Commons
• Data related to Passeriformes at Wikispecies