The drongos are a family, Dicruridae, of passerine birds of the Old World tropics. The 31 species in the family are placed in a single genus, Dicrurus.
Drongo
Image: Square tailed Drongo (Dicrurus ludwigii) (cropped)
Image: Sharpes Drongo
Image: Dicrurus atripennis 111213
A passerine is any bird of the order Passeriformes which includes more than half of all bird species. Sometimes known as perching birds, passerines generally have an anisodactyl arrangement of their toes, which facilitates perching.
Passerine
Pterylosis or the feather tracts in a typical passerine
Male superb lyrebird (Menura novaehollandiae): This unique songbird shows strong sexual dimorphism, with a peculiarly apomorphic display of plumage in males.
Wieslochia fossil