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Sibley, Charles G. (1993), A World Checklist of Birds, New Haven, Conn.: Yale University Press, ISBN 978-0-300-07083-5 Monroe and Sibley consider the tanagers to be a tribe (Thraupini) of a big family Fringillidae rather than a family of their own .
Birds are a group of warm-blooded vertebrates constituting the class Aves (Latin:), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.
Accipitrimorphae is a clade of birds of prey that include the orders Cathartiformes (New World vultures) and Accipitriformes (diurnal birds of prey such as eagles, hawks, osprey and secretarybird).
List of bird genera concerns the chordata class of aves or birds, characterised by feathers, a beak with no teeth, the laying of hard-shelled eggs, ...
The ratites are mostly large and long-legged, flightless birds, lacking a keeled sternum. Traditionally, all the ratites were place in the order Struthioniformes . However, recent genetic analysis has found that the group is not monophyletic, as it is paraphyletic with respect to the tinamous , so the ostriches are classified as the only ...
Many birds in other families are also commonly called "finches". These groups include the estrildid finches ( Estrildidae ) of the Old World tropics and Australia ; some members of the Old World bunting family ( Emberizidae ) and the New World sparrow family ( Passerellidae ); and the Darwin's finches of the Galapagos islands, now considered ...
"I’ve been drawing birds in the strip for some time-at least 10 years. Like a lot of things in the medium, suddenly your drawing starts to work," Peanuts' creator Charles Schulz said, "At one ...
On the Phylogeny and Classification of Living Birds, by Charles G. Sibley; The Early History of Modern Birds Inferred from DNA Sequences of Nuclear and Mitochondrial Ribosomal Genes, by Marcel van Tuinen, Charles G. Sibley, and S. Blair Hedges; Sibley's Classification of Birds, by Eric Salzman, Birding, December 1993. The Web version lacks the ...