Gull the exceptions being Sabine's gull and swallow-tailed gulls, which have forked tails, and Ross's gull, which has a wedge-shaped tail. Gulls have moderately long legs, especially when compared to the similar terns, with fully webbed feet. The bill is generally heavy and slightly hooked, with the larger species having stouter bills than the smaller species. The bill colour is often yellow with a red spot for the larger white-headed species and red, dark red or black in the smaller species. The gulls are generalist feeders. Indeed, they are the least specialised of all the seabirds, and their morphology allows for
Common square-tailed drongo to three eggs are laid in a cup nest in a fork high in a tree. These are aggressive and fearless birds, given their small size, at 19 cm, and will attack much larger species if their nest or young are threatened. The male is mainly glossy black, although the wings are duller. The female is similar but less glossy. The bill is black and heavy, and the eye is red. This species is similar to the fork-tailed drongo, but is smaller, and the shorter tail lacks the deep fork which gives the latter species its name. Fork-tailed is also