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The beak, bill, or rostrum is an external anatomical structure found mostly in birds, but also in turtles, non-avian dinosaurs and a few mammals. A beak is used for pecking , grasping , and holding (in probing for food, eating , manipulating and carrying objects, killing prey , or fighting), preening , courtship , and feeding young.
At rest the white stripe stands out and the long neck and the bill with yellow tip and orange red spots at the base are distinctive in the nominate subspecies. In flight it is distinguished by the green speculum with a broad white band at the base. The red spots at the base of the bills are absent in haringtoni. It measures 55–63 cm (22–25 ...
This bird has short legs, long pointed wings and a short tail. Its short bill is an adaptation to aerial feeding. On the ground, it looks mainly pale grey (hence lactea, milky). The crown of the head is brown.
The most distinctive feature of the hornbills is the heavy bill, supported by powerful neck muscles as well as by the fused vertebrae. [3] The large bill assists in fighting, preening, constructing the nest, and catching prey. A feature unique to the hornbills is the casque, a hollow structure that runs along the upper mandible. In some species ...
The great hornbill is a large bird, 95–130 cm (37–51 in) long, with a 152 cm (60 in) wingspan and a weight of 2 to 4 kg (4.4 to 8.8 lb). The average weight of 7 males is 3 kg (6.6 lb) whereas that of 3 females is 2.59 kg (5.7 lb). [ 9 ]
The Malabar grey hornbill has a grey back and a cinnamon vent. The long tail is blackish with a white tip, and the underparts are grey with white streaks. The long curved bill has no casque. Immature birds have browner upperparts and a yellow bill. [4] Young birds have a dull white or yellow iris. [5] [6]
The adult Indian silverbill is 11–11.5 cm long and has a conical silver-grey bill, buff-brown upperparts, white underparts, buffy flanks and dark wings. The tail is black and the wings are dark contrasting with a white rump. The sexes are similar, but immatures have buff underparts and a shorter tail.
The Indian pitta is a small stubby-tailed bird that is mostly seen on the floor of forests or under dense undergrowth, foraging on insects in leaf litter. It has long, strong legs, a very short tail and stout bill, with a buff-coloured crown stripe, black coronal stripes, a thick black eye stripe and white throat and neck.