Eastern osprey

Last updated

Eastern osprey
Wild Pandion.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Accipitriformes
Family: Pandionidae
Genus: Pandion
Species:
P. haliaetus
Subspecies:
P. h. cristatus
Trinomial name
Pandion haliaetus cristatus
(Vieillot, 1816)
Synonyms

Pandion cristatus

The eastern osprey (Pandion haliaetus cristatus) is a diurnal, fish-eating bird of prey. They live in Oceania at coastal regions of the Australian continent, the Indonesian islands, New Guinea, and the Philippines. It is usually sedentary and pairs breed at the same nest site, building up a substantial structure on dead trees or limbs. The subspecies resides in a habitat close to coasts and estuaries that provide opportunities for fishing. In 2022, it was considered a defunct species by the IOC, due to its low genetic divergences and absence in morphological differences. [1] The eastern osprey's diet consists mostly of vertebrate fish species. It possesses specialised physical characteristics and exhibits unique behaviour to assist in hunting and catching prey.

Contents

Taxonomy

A description as species Buteo cristatus was published in 1816 by the French ornithologist Louis Vieillot, [2] which came to be cited as a subspecies or race of a widely distributed species. [3] The epithet cristatus is derived from the Latin for 'crested' in reference to the stiff tuft of feathers that extend from the nape. [4] The subspecific treatment Pandion haliaetus cristatus distinguishes the crest from other subspecies of P. haliaetus, the name taken from ancient Greek haliaietos for 'sea eagle'. [4]

Later authors described the regional population as separate species—Pandion leucocephalus Gould, J. 1838 and Pandion gouldi Kaup, J.J. 1847—or as subspecies—Pandion haliaetus australis Burmeister, K.H.K. 1850 and Pandion haliaetus melvillensis Mathews, G.M. 1912. [5]

Illustration of head by Eilzabeth Gould, published 1838 A synopsis of the birds of Australia, and the adjacent Islands BHL45925271.jpg
Illustration of head by Eilzabeth Gould, published 1838

Gould's description identified several characteristics that distinguished his new species from widespread Pandion haliaetus, based on specimens collected in Tasmania, Rottnest Island in the west, and Port Essington; the accompanying lithograph illustrating the species—published in the Synopsis (1838) [6] to Birds of Australia —was executed by Elizabeth Gould. [4]

Some authorities maintain a treatment of the "eastern osprey" population as one of four subspecies of Pandion haliaetus , the only extant species of the genus and family. When specimens and observations of new populations were published in the nineteenth century, many authors described these as new species, revisions around the beginning of the twenty first century began to suggest that status as a full species was warranted. [7]

The Australian Faunal Directory recognises a full species treatment, [5] citing a 2008 revision that noted genetic distance comparable to closely related species of Hieraeetus and Aquila (Wink, et al., 2004) [7] and minor but consistent distinctions in morphology and plumage colour. [8] Behavioural differences between the three contentious populations include this species residence at marine habitat, whereas the North American population is found breeding and colonising sites near freshwater. [9]

Pandion , described by the French zoologist Marie Jules César Savigny in 1809, [10] is the sole genus of the family Pandionidae; it is named for a mythic Greek figure known as Pandion. Some arrangements place it alongside the hawks and eagles in the family Accipitridae—which itself can be regarded as making up the bulk of the order Accipitriformes—or else allied with the Falconidae into Falconiformes. The Sibley-Ahlquist taxonomy has placed it together with the other diurnal raptors in a greatly enlarged Ciconiiformes, but this results in an unnatural paraphyletic classification. [11]

They are known by the common name osprey, or distinguished as the eastern osprey, [5] other names include fish hawk and white-headed osprey. [3] [5] Gould noted the informal vernacular used after settlement of Australia, the 'Little Fish-Hawk' in New South Wales and 'Fish-Hawk' recorded at the Swan River Colony by John Gilbert; the extant names for the species were Joor-jout at Port Essington and another in southwest Australia, transliterated from the Nyungar language; [12] this latter name has proposed for common use in southwest Australia as yoondoordo [pronounced yoon’door’daw]. [13]

Description

illustration by Henrik Gronvold in Mathews, The birds of Australia, 1916 Birds of Australia Mathews vol 5 plate 259.jpg
illustration by Henrik Grönvold in Mathews, The birds of Australia , 1916

Pandion cristatus, comparable in size as a medium-sized raptor or large hawk, occurs near the coast and large water bodies and is highly adapted to hunt and capture marine animals. [14] [15] The plumage is dark brown on the upper surfaces, and pale at the head and lower parts. The throat is white, a black line extends from this through the eye to a dark patch around the ear, demarcating this from the pale colour at the head. When not in flight, the feathers at the crown form a small crest. The breast is dappled with brownish patches, lacing below the neck, this is darker and more strongly banded in the female. The female of the species also tends to be larger. [14] The wing measurements of the females range from 410 to 478 millimetres, males are 391 to 470 mm. The weight of the female is 1.2 to 1.6 kilograms, males are 0.9 to 1.2 kg. The size range of the black bill is 29 to 35 millimetres, [15] and the upper mandible is acutely hooked. The legs and feet of the species are strong and a light grey or white colour. [14] [16] The pattern of the scales at the tarsus is reticulate. [9] The irides are yellow. The juveniles resemble adults, although the iris colour is a darker orange-yellow and plumage is distinguishable in multiple and subtle ways. [16] In flight, the eastern osprey has bowed wings with narrow primary feathers that are angled and separate, giving a fingered appearance to the observer below. The eyes are set toward the front of the head, which along with the neck is proportionally small. The species swivels and cranes its neck while observing its surroundings in a curious and characteristic manner. The osprey resembles the white-bellied sea eagle Haliaeetus leucogaster , which has similar habitat and range, although the adult size is only that of the larger species' juvenile; the wings of an osprey are sharply angled rather than the up-swept outline of the soaring eagle. [14]

Ospreys differ in several respects from other diurnal birds of prey, toes are of equal length, its tarsi are reticulate, and its talons are rounded, rather than grooved. The eastern and western osprey ( Pandion ) and owls (Strigiformes) are the only hunters whose outer toe is reversible, allowing them to grasp their prey with two toes in front and two behind. This is particularly helpful when they grasp slippery fish. [17]

Distribution and habitat

The states and territories of Australia where the species is recorded as occurring are Western Australia, the Northern Territory, Queensland, New South Wales, [18] South Australia and Tasmania, [5] The range is a narrow strip at the coast and offshore islands, although it is occasionally found at open river systems and beyond tidal plains. [3] Visits to inland regions from the north during the wet season may occur in years of heavier rainfall. [9] On this continent it is mainly sedentary, non-migratory, in contrast to the other subspecific populations of Pandion haliaetus. They occur patchily around the coastline, although it is a non-breeding visitor to eastern Victoria and Tasmania. [19] There is a 1,000 km (620 mi) gap, corresponding with the coast of the Nullarbor Plain, between its westernmost breeding site in South Australia and the nearest breeding sites at the southwest of Australia. [20] The species had been reported as uncommon in the southeast of Australia. [21]

Other regions inhabited by the species at the Philippines, Indonesia and New Guinea. [14] Seasonal visitors to Sulawesi arrive from the south, and these are presumed to have migrated from the north of Australia. [16]

The tree selected as a roost or nest site in Australia is a large eucalypt. They may be seen in flight over a variety of habitats occurring between their residence and hunting waters. [16]

Behaviour

The species is solitary or paired with a breeding partner, the association of several individuals in family groups are unusual records. They are a diurnal species, ranging out from a nest or perch over water bodies during daylight, but have been recorded hunting at night. [16] Their flight may be high, soaring over and surveying the water, or quartering closer to the surface; some flight is seemingly unrelated to hunting.

Hunting

The diet is largely local species of fish, although a favoured target in Australia is known to be mullet when available. [16] Occasional records are given for other marine life—sea snakes, molluscs and crustaceans—and for terrestrial species of reptiles, insects, birds and mammals. [16] [22] They are known to capture sea birds in flight. [16] [9]

Ospreys have vision that is well adapted to detecting underwater objects from the air. Prey is first sighted when the eastern osprey is 10 to 40 metres above the water, after which the bird hovers momentarily then plunges feet first with wings raised; a large splash is made as it enters the water. [23] [9] The descent toward their prey may be done in stages, and they may immerse themselves up to a depth of 1 metre. After seizing their target they use heavy wing beats to rise from the water's surface, resuming a regular action with the fish being carried head first toward the shore. [16] The prey is "slung torpedo-fashion" with a leading foot behind the head and the other clasping behind, this aligning habit distinguishes Pandion from indifferent clutching of prey by fishing eagles. [9] Their large prey is not swallowed immediately, instead being butchered at a perch or nest site outside the breeding season. [14]

osprey with catch at Peel Harvey Estuary Osprey with catch at Peel Harvey Estuary.jpg
osprey with catch at Peel Harvey Estuary

The genus Pandion has several adaptations that suit its piscivorous lifestyle, these include reversible outer toes, sharp spicules on the underside of the toes, [24] closable nostrils to keep out water during dives, and backwards-facing scales on the talons which act as barbs to help hold its catch. The osprey has dense plumage which is oily and prevents its feathers from getting waterlogged. [25]

Reproduction

Rocky outcrops just offshore are used in Rottnest Island off the coast of Western Australia, where there are 14 or so similar nesting sites of which five to seven are used in any one year. Many are renovated each season, and some have been used for 70 years. The nest is a large heap of sticks, driftwood, turf or seaweed that is usually built in the fork of a dead tree or limb, cliff faces are also utilised. [14] trees, rocky outcrops, utility poles, artificial platforms or offshore islets. [26] [27] Continually occupied nest structures may reach up to two metres in height. [14] Nests can be as wide as 2 meters [14] and weighing about 135 kg.[ citation needed ]

Generally, eastern ospreys reach sexual maturity and begin breeding around the age of three to four years.

Eastern ospreys usually mate for life, although polyandry has been recorded in several instances. [28] The breeding period varies according to local seasons: this begins between September and October in southern Australia, April to July in northern Australia and June–August in southern Queensland. [27] In spring the pair begins a five-month period of partnership to raise their young. The clutch size is usually two to three eggs, sometimes up to four, and are able to brood twice in a season. [16] These are laid within a month, and relies on the size of the nest to conserve heat. The egg shell is white or buff with bold splotches and spots of reddish-brown, sometimes so dark as to be black; purple or grey blotches may appear beneath the surface of the shell. [12] [16] The egg measurements are about 62 x 45 millimetres and weigh about 65 grams. [27] The eggs are incubated for about 35–43 days to hatching. [29]

The newly hatched chicks weigh 50 to 60 grams and fledge in 8 to 10 weeks. A study on Kangaroo Island had an average time between hatching and fledging of 69 days. The same study found an average of 0.66 young fledged per year per occupied territory, and 0.92 young fledged per year per active nest. Some 22% of surviving young either remained on the island or returned at maturity to join the breeding population. [28] When food is scarce, the first chicks to hatch are most likely to survive. The typical lifespan is 7–10 years, though rarely individuals can grow to as old as 20–25 years.

A nest examined in 1902 found fish skeletons at the edge and a seaside plant "pig-face" ( Mesembryanthemum ) in full growth. [30]

Status and conservation

The species is listed as vulnerable in South Australia, under the National Parks and Wildlife Act 1972 . [31] There is evidence for regional decline in the state, where former territories at locations in the Spencer Gulf and along the lower Murray River have been vacant for decades. Nesting sites on the Eyre Peninsula and Kangaroo Island are vulnerable to unmanaged coastal recreation and encroaching urban development. [20] As of 2024 there were estimated to be only 50 breeding pairs left in SA, mostly on islands and isolated stretches of coast, reflecting a 26 per cent population decrease over 10 years. [32] After finding that foxes had been stealing eggs, the Friends of Osprey conservation group and National Parks and Wildlife Service South Australia installed towers to provide an elevated platform for ospreys to nest. Their efforts were rewarded on Tumby Island, where a chick hatched in October 2023. [33] Since seven artificial nesting platforms were installed across mainland Yorke Peninsula, where there were no breeding pairs, and the Eyre Peninsula, osprey breeding territories increased to five in 2022, up from one in 2017. In 2024, 14 chicks had hatched from the artificial platforms, and in June 2024 a further six platforms were erected on the Eyre Peninsula. [32]

In New South Wales, the osprey is listed as vulnerable under the Biodiversity Conservation Act 2016 (NSW) . [31] The population had declined until around the 1970s, when they began to thrive in northern area of the state, and started expanding their range southwards. In July 2023, there were 13 breeding pairs on the Central Coast of NSW, the highest number ever observed in the region, and they were second most common raptor there, after the White-breasted Sea Eagle. [34] There is a nest of ospreys nesting in one of the light towers of Central Coast Stadium. The breeding pair produced chicks every year from 2016 until July 2023, [35] when a video of the osprey family was posted on Facebook. [36] The parents were named Rosie and Hutch by patrons of the stadium. [37]

As of July 2024, the bird is not listed or protected by legislation in other states. [31]

In Western Australia, it is relatively common in the north and less frequently recorded in the south.[ citation needed ] A 1902 report by Alexander Milligan of a breeding pair in the southwest region was published in The Emu , and a description of a nest with two eggs located at Cape Mentelle which had been photographed eleven years earlier by A. J. Campbell. One egg was taken for deposit at the state's museum by Milligan and along with the museum's director, B. H. Woodward, charged the warden of the cave system with protection of the site. [30]

The species is rare in Victoria and now absent from Tasmania. [9]

Related Research Articles

<span class="mw-page-title-main">Bald eagle</span> Bird of prey species of North America

The bald eagle is a bird of prey found in North America. A sea eagle, it has two known subspecies and forms a species pair with the white-tailed eagle, which occupies the same niche as the bald eagle in the Palearctic. Its range includes most of Canada and Alaska, all of the contiguous United States, and northern Mexico. It is found near large bodies of open water with an abundant food supply and old-growth trees for nesting.

<span class="mw-page-title-main">Osprey</span> Species of bird

The osprey, historically known as sea hawk, river hawk, and fish hawk, is a diurnal, fish-eating bird of prey with a cosmopolitan range. It is a large raptor, reaching more than 60 cm (24 in) in length and 180 cm (71 in) across the wings. It is brown on the upperparts and predominantly greyish on the head and underparts.

<span class="mw-page-title-main">White-tailed eagle</span> Species of bird

The white-tailed eagle, sometimes known as the 'sea eagle', is a large bird of prey, widely distributed across temperate Eurasia. Like all eagles, it is a member of the family Accipitridae which also includes other diurnal raptors such as hawks, kites, and harriers. One of up to eleven members in the genus Haliaeetus, which are commonly called sea eagles, it is also referred to as the white-tailed sea-eagle. Sometimes, it is known as the ern or erne, gray sea eagle and Eurasian sea eagle.

<span class="mw-page-title-main">White-bellied sea eagle</span> Large diurnal bird of prey

The white-bellied sea eagle, also known as the white-breasted sea eagle, is a large diurnal bird of prey in the family Accipitridae. Originally described by Johann Friedrich Gmelin in 1788, it is closely related to Sanford's sea eagle of the Solomon Islands, and the two are considered a superspecies. A distinctive bird, the adult white-bellied sea eagle has a white head, breast, under-wing coverts and tail. The upper parts are grey and the black under-wing flight feathers contrast with the white coverts. The tail is short and wedge-shaped as in all Haliaeetinae species. Like many raptors, the female is larger than the male, and can measure up to 90 cm (35 in) long with a wingspan of up to 2.2 m (7.2 ft), and weigh 4.5 kg (9.9 lb). Immature birds have brown plumage, which is gradually replaced by white until the age of five or six years. The call is a loud goose-like honking.

<span class="mw-page-title-main">Black-shouldered kite</span> Small raptor found in Australia

The black-shouldered kite, also known as the Australian black-shouldered kite, is a small raptor found in open habitats throughout Australia. It resembles similar species found in Africa, Eurasia and North America, including the black-winged kite, a species that has in the past also been called "black-shouldered kite". Measuring around 35 cm (14 in) in length, with a wingspan of 80–100 cm (31–39 in), the adult black-shouldered kite has predominantly grey-white plumage and prominent black markings above its red eyes. It gains its name from the black patches on its wings. The primary call is a clear whistle, uttered in flight and while hovering. It can be confused with the related letter-winged kite in Australia, which is distinguished by the striking black markings under its wings.

<span class="mw-page-title-main">Forster's tern</span> Species of bird

Forster's tern is a tern in the family Laridae. The genus name Sterna is derived from Old English "stearn", "tern", and forsteri commemorates the naturalist Johann Reinhold Forster.

<span class="mw-page-title-main">African hawk-eagle</span> Species of bird

The African hawk-eagle is a large bird of prey. Like all eagles, it belongs to the family Accipitridae. This species' feathered legs mark it as a member of the Aquilinae subfamily. The African hawk-eagle breeds in tropical Sub-Saharan Africa. It is a bird of assorted woodland, including both savanna and hilly areas but the tend to occur in woodland that is typically dry. The species tends to be rare in areas where their preferred habitat type is absent. This species builds a stick nest of around 1 m (3.3 ft) across in a large tree. The clutch is generally one or two eggs. The African hawk-eagle is powerfully built and hunts small to medium-sized mammals and birds predominantly, occasionally taking reptiles and other prey as well. The call is a shrill kluu-kluu-kluu. The African hawk-eagle is considered a fairly stable species and a species of Least Concern per the IUCN.

<span class="mw-page-title-main">Grey-headed fish eagle</span> Species of bird

The grey-headed fish eagle is a fish-eating bird of prey from Southeast Asia. It is a large stocky raptor with adults having dark brown upper body, grey head and lighter underbelly and white legs. Juveniles are paler with darker streaking. It is often confused with the lesser fish eagle and the Pallas's fish eagle. The lesser fish eagle is similar in plumage but smaller and the Pallas's fish eagle shares the same habitat and feeding behaviour but is larger with longer wings and darker underparts. Is often called tank eagle in Sri Lanka due to its fondness for irrigation tanks.

<span class="mw-page-title-main">Greater crested tern</span> Seabird in the family Laridae

The greater crested tern, also called crested tern, swift tern, or great crested tern, is a tern in the family Laridae that nests in dense colonies on coastlines and islands in the tropical and subtropical Old World. Its five subspecies breed in the area from South Africa around the Indian Ocean to the central Pacific and Australia, all populations dispersing widely from the breeding range after nesting. This large tern is closely related to the royal and lesser crested terns, but can be distinguished by its size and bill colour.

<span class="mw-page-title-main">Red-tailed tropicbird</span> Seabird of the tropical Indian and Pacific Oceans

The red-tailed tropicbird is a seabird native to tropical parts of the Indian and Pacific Oceans. One of three closely related species of tropicbird (Phaethontidae), it was described by Pieter Boddaert in 1783. Superficially resembling a tern in appearance, it has almost all-white plumage with a black mask and a red bill. The sexes have similar plumage. As referenced in the common name, adults have red tail streamers that are about twice their body length. Four subspecies are recognised, but there is evidence of clinal variation in body size—with smaller birds in the north and larger in the south—and hence no grounds for subspecies.

<span class="mw-page-title-main">Galapagos hawk</span> Species of bird

The Galápagos hawk is a large hawk endemic to most of the Galápagos Islands.

<span class="mw-page-title-main">Least tern</span> Species of bird

The least tern is a species of tern that breeds in North America and locally in northern South America. It is closely related to, and was formerly often considered conspecific with, the little tern of the Old World. Other close relatives include the yellow-billed tern and Peruvian tern, both from South America.

<span class="mw-page-title-main">Ospreys in Britain</span>

The osprey is a medium-large raptor which is a specialist fish-eater with a worldwide distribution. The subspecies Pandion haliaetus haliaetus is native to Eurasia and is found in the British Isles, where it is a scarce breeder primarily in Scotland, with smaller numbers in England and Wales. It became extinct in the British Isles in 1916, but recolonised in 1954. Scandinavian birds migrate through Britain on the way to their breeding sites.

<span class="mw-page-title-main">Antarctic tern</span> Species of bird

The Antarctic tern is a seabird in the family Laridae. It ranges throughout the southern oceans and is found on small islands around Antarctica as well as on the shores of the mainland. Its diet consists primarily of small fish and crustaceans. It is very similar in appearance to the closely related Arctic tern, but it is stockier, and it is in its breeding plumage in the southern summer, when the Arctic tern has shed old feathers to get its non-breeding plumage. The Antarctic tern does not migrate like the Arctic tern does, but it can still be found on a very large range. This tern species is actually more closely related to the South American tern.

<span class="mw-page-title-main">Letter-winged kite</span> Raptor native to Australia

The letter-winged kite is a small, rare and irruptive bird of prey that is found only in Australia. Measuring around 35 cm (14 in) in length with a wingspan of 84–100 cm (33–39 in), the adult letter-winged kite has predominantly pale grey and white plumage and prominent black rings around its red eyes. Its name derives from its highly distinctive black underwing pattern of a shallow 'M' or 'W' shape, visible when in flight. This distinguishes it from the otherwise similar black-shouldered kite. This species is also the only nocturnal species within the order Accipitriformes despite few differences found in its visual anatomy to other closely related kites.

<span class="mw-page-title-main">Black-breasted buzzard</span> Species of bird

The black-breasted buzzard is a large raptor endemic to mainland Australia. First described by John Gould in 1841, it forms part of the family Accipitridae and is most closely related to the square-tailed kite. It is a versatile hunter known for its special skill in cracking eggs. The species is common throughout most of its range.

<span class="mw-page-title-main">Fairy tern</span> Species of bird

The fairy tern is a small tern which is native to the southwestern Pacific. It is listed as "Vulnerable" by the IUCN and the New Zealand subspecies is "Critically Endangered". Fairy terns live in colonies along the coastlines and estuaries of Australia, New Zealand, and New Caledonia, feeding largely on small, epipelagic schooling fishes, breeding in areas close to their feeding sites. They have a monogamous mating system, forming breeding pairs in which they mate, nest, and care for offspring.

<i>Pandion</i> (bird) Genus of birds

Pandion is a genus of fish-eating bird of prey, known as ospreys, the only genus of family Pandionidae. Most taxonomic treatments have regarded this genus as containing a single living species, separated into subspecies and found worldwide near water, while some treatments recognize two living species, splitting off the eastern osprey from Australia and southeast Asia.

<span class="mw-page-title-main">Tasmanian masked owl</span> Subspecies of bird

The Tasmanian masked owl is a bird in the barn owl family Tytonidae that is endemic to the island state of Tasmania, Australia. It is the largest subspecies of the Australian masked owl, the largest Tyto owl in the world, and is sometimes considered a full species. The subspecific name castanops, meaning "chestnut-faced", comes from the colouring of the facial disc. It was first described by John Gould, who wrote about it in his Handbook to the Birds of Australia as:

"…a species distinguished from all the other members of its genus by its great size and powerful form. Probably few of the Raptorial birds, with the exception of the Eagles, are more formidable or more sanguinary in disposition."

"Forests of large but thinly scattered trees, skirting plains and open districts, constitute its natural habitat. Strictly nocturnal in its habits, as night approaches it sallies forth from the hollows of the large gum-trees, and flaps slowly and noiselessly over the plains and swamps in search of its prey, which consists of rats and small quadrupeds generally."

<span class="mw-page-title-main">Red-shouldered hawk</span> Species of bird

The red-shouldered hawk is a medium-sized buteo. Its breeding range spans eastern North America and along the coast of California and northern to northeastern-central Mexico. It is a permanent resident throughout most of its range, though northern birds do migrate, mostly to central Mexico. The main conservation threat to the widespread species is deforestation.

References

  1. ↑ "IOC birds list".
  2. ↑ Vieillot, L.P. 1816. New Dictionary of Natural History, applied arts, agriculture, rural and domestic Écomomie in medicine, etc..By a company of naturalists and farmers. Paris : Chez Deterville Vol. 4 pp. [481].
  3. 1 2 3 Reader's digest complete book of Australian birds (2nd rev. 1st ed.). Reader's Digest Services. 1982. p. 114. ISBN   0909486638.
  4. 1 2 3 Olsen, Penny (2015). Australian Predators of the Sky. National Library of Australia. pp. 23, 194. ISBN   9780642278562.
  5. 1 2 3 4 5 "Species Pandion cristatus (Vieillot, 1816)". Australian Faunal Directory. Australian Government. Retrieved December 5, 2018.
  6. ↑ Gould, John (1837). A synopsis of the birds of Australia, and the adjacent Islands /. John Gould. pp. Pl. 141. doi:10.5962/bhl.title.94763.
  7. 1 2 Wink, M.; Sauer-Gürth, H.; Witt, H.H. (2004). "Phylogenetic differentiation of the Osprey Pandion haliaetus inferred from nucleotide sequences of the mitochondrial cytochrome b gene" (PDF). In Chancellor, R.D.; Meyburg, B.-U. (eds.). Raptors Worldwide. Berlin: World Working Group on Birds of Prey and Owls. pp. 511–516. ISBN   963-86418-1-9.
  8. ↑ Christidis, Les; Boles, Walter (2008). Systematics and Taxonomy of Australian Birds. Csiro Publishing. p. 115. ISBN   9780643065116.
  9. 1 2 3 4 5 6 7 Debus, Stephen J. S. (2012). Birds of Prey of Australia: A Field Guide. Csiro Publishing. p. 95. ISBN   9780643104365.
  10. ↑ Graves, R. (1955). "The Sons of Pandion". Greek Myths. London: Penguin. pp.  320–323. ISBN   0-14-001026-2.
  11. ↑ Salzman, Eric (1993). "Sibley's Classification of Birds". Birding. 58 (2): 91–98. Archived from the original on April 13, 2018. Retrieved September 5, 2007.
  12. 1 2 Gould, John (1865). Handbook to The birds of Australia. Published by the author. pp. 22–23.
  13. ↑ Abbott, Ian (2009). "Aboriginal names of bird species in south-west Western Australia, with suggestions for their adoption into common usage" (PDF). Conservation Science Western Australia Journal. 7 (2): 243.
  14. 1 2 3 4 5 6 7 8 9 "Eastern Osprey |". BirdLife Australia. Retrieved December 15, 2018.
  15. 1 2 Menckhurst, Peter; et al. (2017). The Australian bird guide. CSIRO. ISBN   9780643097544.
  16. 1 2 3 4 5 6 7 8 9 10 11 Pandion cristatus — Eastern Osprey, Species Profile and Threats Database, Department of the Environment and Heritage, Australia. [ dead link ]
  17. ↑ Terres, J.K. (1980). The Audubon Society Encyclopedia of North American Birds. New York, NY: Knopf. pp.  644–646. ISBN   0-394-46651-9.
  18. ↑ "Eastern Osprey - profile |". NSW Environment & Heritage. Retrieved April 14, 2019.
  19. ↑ Simpson, K.; Day, N.; Trusler, P. (1993). Field Guide to the Birds of Australia. Ringwood, Victoria: Viking O'Neil. p. 66. ISBN   0-670-90478-3.
  20. 1 2 Dennis, T.E. (2007). "Distribution and status of the Osprey (Pandion haliaetus) in South Australia". Emu. 107 (4): 294–299. Bibcode:2007EmuAO.107..294D. doi:10.1071/MU07009. S2CID   84883853.
  21. ↑ Morcombe 1986, p. 272.
  22. ↑ Morcombe 1986, p. 2272.
  23. ↑ Poole, A.F.; Bierregaard, R.O.; Martell, M.S. (2002). "Osprey (Pandion haliaetus)". In Poole, A.; Gill, F. (eds.). The Birds of North America. Philadelphia, PA: The Birds of North America, Inc.
  24. ↑ Clark, W.S.; Wheeler, B.K. (1987). A field guide to Hawks of North America. Boston: Houghton Mifflin. ISBN   0-395-36001-3.
  25. ↑ "Pandion haliaetus Linnaeus Osprey" (PDF). Michigan Natural Features Inventory. Retrieved May 11, 2016.
  26. ↑ Evans, D.L. (1982). Status Reports on Twelve Raptors: Special Scientific Report Wildlife (Report). U.S. Department of the Interior, Fish and Wildlife Service. Archived from the original on August 28, 2009.
  27. 1 2 3 Beruldsen, G. (2003). Australian Birds: Their Nests and Eggs. G. Beruldsen. p. 196. ISBN   0-646-42798-9.
  28. 1 2 Dennis, T.E. (2007). "Reproductive activity in the Osprey (Pandion haliaetus) on Kangaroo Island, South Australia". Emu. 107 (4): 300–307. Bibcode:2007EmuAO.107..300D. doi:10.1071/MU07010. S2CID   85099678.
  29. ↑ Poole, Alan F. Ospreys, A Natural and Unnatural History 1989
  30. 1 2 Milligan, A.W. (1902). "Field Observations on Western Australian Birds". Emu. 2 (July 1902 – Apr 1903). Royal Australasian Ornithologists Union: 70. Bibcode:1902EmuAO...2...68M. doi:10.1080/01584197.1902.11791886.
  31. 1 2 3 "Pandion haliaetus cristatus — Eastern Osprey, Australian Osprey". Species Profile and Threats Database . Department of Climate Change, Energy, the Environment and Water, Australian Government. 2023. Retrieved October 25, 2023. CC-BY icon.svg Attribution 3.0 Australia (CC BY 3.0 AU) licence.
  32. 1 2 Hamilton, Jodie (July 2, 2024). "Artificial nests built to help save rare eastern osprey birds on Eyre Peninsula". ABC News . Retrieved July 3, 2024.
  33. ↑ Hamilton, Jodie; Coe, Angela (October 24, 2023). "Rare eastern osprey chick hatches on Tumby Island after platform built to keep nest safe from foxes". ABC News. Retrieved October 25, 2023.
  34. ↑ "13 Osprey pairs nesting on Coast". Central Coast News. July 18, 2023. Retrieved July 3, 2024.
  35. ↑ Kumar, Ayush (July 27, 2023). "Beak-ing News! Three Little Hatchings In The Stadium Nest As Our Birds Deliver For the Sixth Straight Year". Industree Group Stadium. Retrieved July 3, 2024.
  36. ↑ "We have BEAK-ING NEWS on the Central Coast..." Facebook. Industree Group Stadium. Retrieved July 3, 2024.
  37. ↑ "Our Birds". Industree Group Stadium. July 25, 2022. Retrieved July 3, 2024.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.