Honeyeater
| Honeyeaters | ||||||||||
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New Holland Honeyeater. |
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| Scientific classification | ||||||||||
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| Genera | ||||||||||
| Anthochaera Acanthagenys Plectorhyncha Philemon Xanthornyzma Entomyzon Manorina Xanthotis Meliphaga Lichenostomus Melithreptus Notiomystis Glycichaera Lichmera Trichodere Grantiella Phylidonyris Ramsayornis Conopophila Acanthorhynchus Certhionyx Myzomela Anthornis Prosthemadera Epthianura Ashbyia |
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The honeyeaters are a large and diverse family of small to medium sized birds most common in Australia and New Guinea, but also found in New Zealand, the Pacific islands as far east as Hawaii, and the islands to the north and west of New Guinea known as Wallacia. Bali, on the other side of the Wallace Line, has a single species.
Honeyeaters and the closely related Australian chats make up the family Meliphagidae. In total there are 182 species in 42 genera, roughly half of them native to Australia, many of the remainder occupying New Guinea. Like their closest relatives, the Maluridae (Australian wrens), Pardalotidae (pardalotes and thornbills), and Petroicidae (Australian robins), they originated as part of the great corvid radiation in Australia/New Guinea (which were joined in a single landmass until quite recently, in geological terms). Although they look and behave very much like other nectar-feeding passerines around the world (such as the sunbirds and flowerpeckers), they are unrelated, and the similarities are the consequence of convergent evolution.
Unlike the hummingbirds of America, honeyeaters do not have extensive adaptations for hovering flight, though smaller members of the family do hover hummingbird-style to collect nectar from time to time. In general, however, honeyeaters prefer to flit quickly from perch to perch in the outer foliage, stretching up or sideways or hanging upside down at need. All genera have a highly developed brush-tipped tongue, longer in some species than others, frayed and fringed with bristles which soak up liquids readily. The tongue is flicked rapidly and repeatedly into a flower, the upper mandible then compressing any liquid out when the bill is closed.
The extent of the evolutionary partnership between honeyeaters and Australasian flowering plants is unknown, but probably substantial. A great many Australian plants are fertilised by honeyeaters, particularly the Proteacae, Myrtaceae, and Epacridacae. It is known that the honeyeaters are important in New Zealand as well, and assumed that the same applies in other areas.