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Birds that do not exhibit sexual dichromatism in wavelengths visible to humans are sometimes distinguished by the presence of ultraviolet reflective patches on their feathers. [ 39 ] [ 40 ] Male blue tits have an ultraviolet reflective crown patch which is displayed in courtship by posturing and raising of their nape feathers. [ 41 ]
The sun conure (Aratinga solstitialis), also known as the sun parakeet, is a medium-sized, vibrantly colored parrot native to northeastern South America. The adult male and female are similar in appearance, with black beaks, predominantly golden-yellow plumage, orange-flushed underparts and face, and green and blue-tipped wings and tails.
The Australian budgerigar, or shell parakeet, is a popular pet and the most common parakeet. Parakeets comprise about 115 species of birds that are seed-eating parrots of small size, slender build, and long, tapering tails. [citation needed] The Australian budgerigar, also known as "budgie", Melopsittacus undulatus, is probably the most common ...
The "Aztec" olive-throated parakeet is 21.5 to 25 cm (8.5 to 9.8 in) long and weighs about 85 g (3.0 oz). The sexes are alike. Adults of the nominate subspecies have a mainly dark green head and upperparts with yellowish ear coverts and rump. Bare white skin surrounds their eye.
The white-eared parakeet is 23 to 25 cm (9.1 to 9.8 in) long. The sexes are the same. Adults have a light brown crown, a bluish forehead and hindneck, a maroon face, and whitish ear coverts. Their upperparts are mostly green with a reddish rump. Their chin, throat, and the sides of their neck are green with light buff scaling.
This is an accepted version of this page This is the latest accepted revision, reviewed on 11 January 2025. Small, long-tailed, seed-eating parakeet Budgerigar Temporal range: Pliocene–Holocene Pre๊ ๊ O S D C P T J K Pg N Blue cere indicates male Flaking brown cere indicates female in breeding condition Conservation status Least Concern (IUCN 3.1) Scientific classification Domain ...
Bird anatomy, or the physiological structure of birds' bodies, shows many unique adaptations, mostly aiding flight.Birds have a light skeletal system and light but powerful musculature which, along with circulatory and respiratory systems capable of very high metabolic rates and oxygen supply, permit the bird to fly.
The maroon-bellied parakeet (Pyrrhura frontalis) is a small parrot found from southeastern Brazil to north-eastern Argentina, including eastern Paraguay and Uruguay. It is also known as the reddish-bellied parakeet , and in aviculture it is usually referred to as the maroon-bellied conure , reddish-bellied conure or brown-eared conure .