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  2. Bird vision - Wikipedia

    en.wikipedia.org/wiki/Bird_vision

    Birds of prey are diurnal because, although their eyes are large, they are optimised to give maximum spatial resolution rather than light gathering, so they also do not function well in poor light. [15] Many birds have an asymmetry in the eye's structure which enables them to keep the horizon and a significant part of the ground in focus ...

  3. White-eared parakeet - Wikipedia

    en.wikipedia.org/wiki/White-eared_parakeet

    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.

  4. Budgerigar - Wikipedia

    en.wikipedia.org/wiki/Budgerigar

    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 PreꞒ Ꞓ 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 ...

  5. Visible spectrum - Wikipedia

    en.wikipedia.org/wiki/Visible_spectrum

    This translates to some birds with a visible spectrum on par with humans, and other birds with greatly expanded sensitivity to UV light. The LWS opsin of birds is sometimes reported to have a peak wavelength above 600 nm, but this is an effective peak wavelength that incorporates the filter of avian oil droplets. [34]

  6. Parakeet - Wikipedia

    en.wikipedia.org/wiki/Parakeet

    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 ...

  7. Flame-winged parakeet - Wikipedia

    en.wikipedia.org/wiki/Flame-winged_parakeet

    A medium-sized parakeet, the brown-breasted parakeet measures 22–23 cm in length. The throat and upper breast are medium brown with light edges giving a scalloped appearance. The head of the bird is mostly greyish-brown with green cheeks and contrasting ear coverts that can appear reddish or brown. The eye has a prominent white orbital ring.

  8. Moment Tiny Abused Parrot Snuggles Into Rescuer's Palm in ...

    www.aol.com/lifestyle/moment-tiny-abused-parrot...

    These birds love to climb, chew, and play. They're also very vocal and naturally produce loud screams and mimic things they hear around them. They can learn words and phrases because they're very ...

  9. Plain parakeet - Wikipedia

    en.wikipedia.org/wiki/Plain_parakeet

    The plain parakeet is 23 to 25 cm (9.1 to 9.8 in) long and weighs about 63 g (2.2 oz). Adults have an essentially all green body, though their nape has a bluish tinge and their undersides have a yellowish one.

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