5025 x 3363 px | 42,5 x 28,5 cm | 16,8 x 11,2 inches | 300dpi
Informations supplémentaires:
tanagers Thraupidae Passeriformes American distribution There were traditionally about 240 species of tanagers, but the taxonomic treatment of this family's members is currently in a state of flux. As more of these birds are studied using modern molecular techniques it is expected that some genera may be relocated elsewhere. Already the Euphonias and chlorophonias, which were once considered part of the tanager family, are now treated as members of Fringillidae, in their own subfamily (Euphoniinae). Likewise the genera Piranga, Chlorothraupis, and Habia appear to be related to members of the Cardinal family, and may soon be reassigned by the AOU. Tanagers are small to medium-sized birds. The shortest-bodied species, the White-eared Conebill, is 9 cm (3.8 in) long and weighs 7 grams, barely smaller than the Short-billed Honeycreeper. The longest, the Magpie Tanager is 28 cm (11 in) and weighs 76 grams (2.7 oz). The heaviest is the White-capped Tanager which weighs 114 grams (4 oz) and measures about 23 cm (8.7 in). Both sexes are usually the same size and weight. Tanagers are often brightly colored, but some species are black and white. Birds in their first year are often duller or a different color altogether. Males are typically more brightly coloured than females. Most tanagers have short, rounded wings. The shape of the bill seems to be linked to the species' foraging habits. Tanagers are restricted to the New World and mainly to the tropics. About 60% of tanagers live in South America, and 30% of these species live in the Andes. Most species are endemic to a relatively small area. 18 species live in North America and Central America year round. 4 species are migratory, breeding in North America. They are the Scarlet Tanager, Western Tanager, Hepatic Tanager and the Summer Tanager. Recent molecular evidence indicates these 4 migratory species may be more closely related to the family Cardinalidae.
