Honeyguide

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Honeyguide
IndicatorProdotiscusKeulemans.jpg
Greater honeyguide and
brown-backed honeybird
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Piciformes
Suborder: Pici
Infraorder: Picides
Family: Indicatoridae
Swainson, 1837
Genera

Honeyguides (family Indicatoridae) are near passerine birds in the order Piciformes. They are also known as indicator birds, or honey birds, although the latter term is also used more narrowly to refer to species of the genus Prodotiscus . They have an Old World tropical distribution, with the greatest number of species in Africa and two in Asia. These birds are best known for their interaction with humans. Honeyguides are noted and named for one or two species that will deliberately lead humans (but, contrary to popular claims, most likely not honey badgers [1] ) directly to bee colonies, so that they can feast on the grubs and beeswax that are left behind.

Description

Brown-backed honeybird juvenile fed by host parent, a rock-loving cisticola Wahlberg's Honeyguide (Prodotiscus regulus) - Juvenile fed by host parent Rock-loving Cisticola.jpg
Brown-backed honeybird juvenile fed by host parent, a rock-loving cisticola

Most honeyguides are dull-colored, though some have bright yellow coloring in the plumage. All have light outer tail feathers, which are white in all the African species. The smallest species by body mass appears to be the green-backed honeyguide, at an average of 10.2 g (0.36 oz), and by length appears to be the Cassin's honeyguide, at an average of 10 cm (3.9 in), while the largest species by weight is the lyre-tailed honeyguide, at 54.2 g (1.91 oz), and by length, is the greater honeyguide, at 19.5 cm (7.7 in). [2] [3] [4]

They are among the few birds that feed regularly on wax beeswax in most species, and presumably the waxy secretions of scale insects in the genus Prodotiscus and to a lesser extent in Melignomon and the smaller species of Indicator . They also feed on waxworms which are the larvae of the waxmoth Galleria mellonella, on bee colonies, and on flying and crawling insects, spiders, and occasional fruits. Many species join mixed-species feeding flocks.

Behavior

Guiding

Honeyguides are named for a remarkable habit seen in one or two species: guiding humans to bee colonies. Once the hive is open and the honey is taken, the bird feeds on larvae and wax. This behavior has been studied in the greater honeyguide; some authorities (following Friedmann, 1955) state that it also occurs in the scaly-throated honeyguide, while others disagree. [2] Wild honeyguides understand various types of human calls that attract them to engage in the foraging mutualism. [5] In northern Tanzania, honeyguides partner with Hadza hunter-gatherers, and the bird assistance has been shown to increase honey-hunters' rates of finding bee colonies by 560%, and led men to significantly higher yielding nests than those found without honeyguides. [6] Contrary to most depictions of the human-honeyguide relationship, the Hadza did not actively repay honeyguides, but instead, hid, buried, and burned honeycomb, with the intent of keeping the bird hungry and thus more likely to guide again. [6] Some experts believe that honeyguide co-evolution with humans goes back to the stone-tool making human ancestor Homo erectus , about 1.9 million years ago. [7] [6] Despite popular belief, no evidence indicates that honeyguides guide the honey badger; though videos about this exist, there have been accusations that they were staged. [8] [9]

Although most members of the family are not known to recruit "followers" in their quest for wax, they are also referred to as "honeyguides" by linguistic extrapolation.

Breeding

The breeding behavior of eight species in Indicator and Prodotiscus is known. They are all brood parasites that lay one egg in a nest of another species, laying eggs in series of about five during a period of 5–7 days. Most favor hole-nesting species, often the related barbets and woodpeckers, but Prodotiscus parasitizes cup-nesters such as white-eyes and warblers. Honeyguide nestlings have been known to physically eject their hosts' chicks from the nests and they have needle-sharp hooks on their beaks with which they puncture the hosts' eggs or kill the nestlings. [10]

African honeyguide birds are known to lay their eggs in underground nests of other bee-eating bird species. The honeyguide chicks kill the hatchlings of the host using their needle-sharp beaks just after hatching, much as cuckoo hatchlings do. The honeyguide mother ensures her chick hatches first by internally incubating the egg for an extra day before laying it, so that it has a head start in development compared to the hosts' offspring. [11]

See also

Related Research Articles

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Bees are winged insects closely related to wasps and ants, known for their roles in pollination and, in the case of the best-known bee species, the western honey bee, for producing honey. Bees are a monophyletic lineage within the superfamily Apoidea. They are currently considered a clade, called Anthophila. There are over 20,000 known species of bees in seven recognized biological families. Some species – including honey bees, bumblebees, and stingless bees – live socially in colonies while most species (>90%) – including mason bees, carpenter bees, leafcutter bees, and sweat bees – are solitary.

<span class="mw-page-title-main">Honey bee</span> Colonial flying insect of genus Apis

A honey bee is a eusocial flying insect within the genus Apis of the bee clade, all native to mainland Afro-Eurasia. After bees spread naturally throughout Africa and Eurasia, humans became responsible for the current cosmopolitan distribution of honey bees, introducing multiple subspecies into South America, North America, and Australia.

<span class="mw-page-title-main">Bee-eater</span> Widespread group of insectivorous bird species in the family Meropidae

The bee-eaters are a group of birds in the family Meropidae, containing three genera and thirty species. Most species are found in Africa and Asia, with a few in southern Europe, Australia, and New Guinea. They are characterised by richly coloured plumage, slender bodies, and usually elongated central tail feathers. All have long down-turned bills and medium to long wings, which may be pointed or round. Male and female plumages are usually similar.

<span class="mw-page-title-main">New World barbet</span> Near passerine birds from the family Capitonidae of the order Piciformes

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

The greater honeyguide is a bird in the family Indicatoridae, paleotropical near passerine birds related to the woodpeckers. Its English and scientific names refer to its habit of guiding people to bee colonies. Claims that it also guides non-human animals are disputed.

<span class="mw-page-title-main">Brood parasitism</span> Animal reliance on other individuals to raise its young

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<span class="mw-page-title-main">Waxworm</span> Caterpillar larvae of wax moths

Waxworms are the caterpillar larvae of wax moths, which belong to the family Pyralidae. Two closely related species are commercially bred – the lesser wax moth and the greater wax moth. They belong to the tribe Galleriini in the snout moth subfamily Galleriinae. Another species whose larvae share that name is the Indian mealmoth, though this species is not available commercially.

<span class="mw-page-title-main">Yellow-rumped honeyguide</span> Species of bird

The yellow-rumped honeyguide is a sparrow-sized bird in the honeyguide family that is found in Asia, mainly in montane forests along the Himalayas. They are very finch-like but the feet are strong and zygodactyl, with two toes facing forward and two backward. They perch on honeycombs and feed on wax. Males tend to be territorial and stay near honeycombs while females and juveniles forage widely. They are brood parasites, laying their eggs in the nests of tree-hole breeders, possibly barbets.

<span class="mw-page-title-main">Honeybird</span> Genus of birds

Honeybirds are birds in the genus Prodotiscus of the honeyguide family. They are confined to sub-Saharan Africa.

<i>Apis laboriosa</i> Species of insect

Apis laboriosa or Himalayan giant honey bee, is the world's largest honey bee; single adults can measure up to 3.0 cm (1.2 in) in length. Before 1980, Apis laboriosa was considered to be a subspecies of the widespread Apis dorsata, the giant honey bee, but in 1980 and for almost 20 years thereafter it was elevated to the rank of a separate species. It was classified once again as a subspecies of Apis dorsata by Michael S. Engel in 1999, but was confirmed as a full species in 2020 on the basis of co-occurrence with Apis dorsata at many sites with no sign of interbreeding. It is highly adapted to its highland habitat in behavior.

<span class="mw-page-title-main">Hadza people</span> Ethnic group based in Karatu District, Arusha Region, northern Tanzania

The Hadza, or Hadzabe, are a protected hunter-gatherer Tanzanian indigenous ethnic group from Baray ward in southwest Karatu District of the Arusha Region. They live around the Lake Eyasi basin in the central Rift Valley and in the neighboring Serengeti Plateau. As of 2015, there are between 1,200 and 1,300 Hadza people living in Tanzania. However, only around 400 Hadza still survive exclusively based on the traditional means of foraging. Additionally, the increasing impact of tourism and encroaching pastoralists pose serious threats to the continuation of their traditional way of life.

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

The striped kingfisher is a species of bird in the tree kingfisher subfamily. It was first described by Edward, Lord Stanley, in Salt's Voyage to Abyssinia in 1814 as "Chelicut kingfisher" Alaudo Chelicuti.

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

The least honeyguide is a small species of bird in the family Indicatoridae. It is found in sub-Saharan Africa.

<span class="mw-page-title-main">Scaly-throated honeyguide</span> Species of bird

The scaly-throated honeyguide is a species of bird in the family Indicatoridae. They have a mutualistic relationship with humans in which they attract beekeepers towards bees' nests and then feeding on the remains, especially larvae.

<span class="mw-page-title-main">Double-toothed barbet</span> Species of bird

The double-toothed barbet is a species of bird in the family Lybiidae. It is found in Angola, Benin, Burundi, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Ethiopia, Gabon, Ghana, Guinea, Guinea-Bissau, Kenya, Liberia, Mali, Nigeria, Rwanda, Sierra Leone, South Sudan, Tanzania, Togo, and Uganda. Within Lybius bidentatus, there are two subspecies: Lybius bidentatus bidentatus and Lybius bidentatus aequatorialis.

The yellow-footed honeyguide is a species of bird in the family Indicatoridae. It is found in Cameroon, Guinea, Liberia, Sierra Leone, Ivory Coast, Ghana and Nigeria. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by loss of its forest habitat.

<i>Indicator</i> (genus) Genus of near passerine birds in the honeyguide family

Indicator is a genus of near passerine birds in the honeyguide family. The name refers to the behaviour of some species, notably the greater honeyguide, which guide humans to bee colonies so that they can share in the spoils of wax and insects when the nest is broken into.

In linguistics, displacement is the capability of language to communicate about things that are not immediately present ; i.e., things that are either not here or are not here now.

<span class="mw-page-title-main">Mellivory</span> Consumption of honey

Mellivory is a term for the eating of honey. Honey is a sweet and viscous substance created by some eusocial insects, notably bees, for consumption by members of their hives, especially their young. Honey is also consumed by many other animals including human beings, who have developed beekeeping to make supplies of honey both reliable and plentiful. Despite honey's limited antimicrobial properties, it remains a food source for a variety of microorganisms.

References

  1. van der Wal, J. E. M.; et al. (2023). "Do honey badgers and greater honeyguide birds cooperate to access bees' nests? Ecological evidence and honey-hunter accounts". Journal of Zoology. 1 (a) via Zoological Society of London.
  2. 1 2 Short, L.L. and J. F. M. Horne (2020). Greater Honeyguide (Indicator indicator), 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.
  3. Short, L.L., J. F. M. Horne, and G. M. Kirwan (2020). Cassin's Honeyguide (Prodotiscus insignis), 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.
  4. Dunning, John B. Jr., ed. (2008). CRC Handbook of Avian Body Masses (2nd ed.). CRC Press. ISBN   978-1-4200-6444-5.
  5. Spottiswoode, Claire N.; Begg, Keith S.; Begg, Colleen M. (July 22, 2016). "Reciprocal signaling in honeyguide-human mutualism". Science . 353 (6297): 387–389. Bibcode:2016Sci...353..387S. doi:10.1126/science.aaf4885. PMID   27463674. S2CID   206648494.
  6. 1 2 3 Wood, Brian M.; Pontzer, Herman; Raichlen, David A.; Marlowe, Frank W. (2014-11-01). "Mutualism and manipulation in Hadza–honeyguide interactions". Evolution and Human Behavior. 35 (6): 540–546. doi:10.1016/j.evolhumbehav.2014.07.007. ISSN   1090-5138.
  7. Wrangham, Richard (2011). Honey and fire in human evolution. Oxbow Books. pp. 149–167.
  8. Dean, W. R. J.; Siegfried, W. Roy; MacDonald, I. A. W. (1 March 1990). "The Fallacy, Fact, and Fate of Guiding Behavior in the Greater Honeyguide". Conservation Biology. 4 (1): 99–101. Bibcode:1990ConBi...4...99D. doi:10.1111/j.1523-1739.1990.tb00272.x.
  9. Yong, Ed (September 19, 2011). "Lies, damned lies, and honey badgers". Kalmbach. Retrieved 11 March 2013.
  10. Short, Lester L. (1991). Forshaw, Joseph (ed.). Encyclopaedia of Animals: Birds. London: Merehurst Press. p. 155. ISBN   978-1-85391-186-6.
  11. Davies, Ella (7 September 2011). "Underground chick-killers filmed". BBC Nature.