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A bare patch of skin that most female birds gain during the nesting season for thermoregulation purposes, by shedding feathers close to the belly, in an area that will be in contact with the eggs during incubation. The patch of bare skin is well supplied with blood vessels at the surface, facilitating heat transfer to the eggs. [56] brood parasite
Overall reddish-brown, this large partridge-like bird has a somewhat long tail. The upper parts are brown with dark barring while the face and neck are more grey in the male. The underside is rufous with dark markings and both sexes have a red facial skin patch and red legs with one or two spurs (rarely three or four [ 10 ] while females may ...
This myna is strikingly marked in black and white and has a yellowish bill with a reddish bill base. The bare skin around the eye is reddish. The upper body, throat and breast are black while the cheek, lores, wing coverts and rump are contrastingly white. The sexes are similar in plumage but young birds have dark brown in place of black. [12]
From this loud and deep voice, it has received its Indian name ueramimbé, meaning "piper-bird". It utters its call early in the morning and in the afternoon. [ 6 ] This wattle may reach a length of 35 cm (14 in) in the long-wattled umbrellabird, but it is smaller in the two remaining species, and covered in bare, bright-red skin in the bare ...
Young birds are duller. [7] When calling, the dark patches on the sides of the neck become visible. [8] These are due to the dark pigmented and bare skin that are present in both sexes and sometimes give the appearance of a dark gorget. [9]
The skin patch bears minute feathers arranged in lines that form a pattern over the otherwise bare skin in all species of the genus except the scarlet macaw in which the skin is bare. In most species the bill is black, but the scarlet macaw and green-winged macaw have a predominantly horn coloured upper mandible and a black lower one.
The bare red skin on the head is developed when reaching breeding maturity and involves the loss of feathers and the deposition of lipids under the skin. [37] [38] Birds in captivity have been known to live for as long as 28 years. [5] Birds raised as chicks have been known to be tame and docile, even responding to their names when called. [6]
The painted spurfowl (Galloperdix lunulata) is a bird of the pheasant family found in rocky hill and scrub forests mainly in peninsular India. Males are more brightly coloured and spotted boldly in white. Males have two to four spurs while females can have one or two of the spurs on their tarsus.