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Using a machine learning algorithm, we determined the dominant color of each bird photo. Let's take a look at the American kestrel, one of the smallest and most colorful falcons in the U.S.
Tweety was created not as a domestic canary, but as a generic (and wild) baby bird in an outdoor nest: naked (pink), jowly, and also far more aggressive and saucy, as opposed to the later, better-known version of him as a less hot-tempered (but still somewhat ornery) yellow canary.
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One explanation of Gloger's rule in the case of birds appears to be the increased resistance of dark feathers to feather- or hair-degrading bacteria such as Bacillus licheniformis. Feathers in humid environments have a greater bacterial load, and humid environments are more suitable for microbial growth; dark feathers or hair are more difficult ...
It was announced that Myspace lost 12 years worth of content in a server migration gone wrong. So that meant any songs, photos and videos uploaded to the site between 2003-2015 were straight up ...
The Venezuelan troupial (Icterus icterus) is the national bird of Venezuela. It is found in Colombia, Venezuela, and the Caribbean islands of Aruba, Curaçao, Bonaire, Trinidad, and Puerto Rico. Together with the orange-backed troupial and campo troupial, it was previously part of a superspecies simply named the troupial that was split.
The lyrebirds are large passerine birds, amongst the largest in the order. They are ground living birds with strong legs and feet and short rounded wings. They are poor fliers and rarely fly except for periods of downhill gliding. [7] The superb lyrebird is the larger of the two species. Lyrebirds measure 31 to 39 inches in length, including ...
Birds have tetrachromatic vision, which means that they have four types of cone cells with peak sensitivities to longwave (l), mediumwave (m), shortwave (s), and ultraviolet (uv) or violet (v) light as well as transparent oil droplets made of carotenoid filters (with mainly the pigments galloxanthin, zeaxanthin, and astaxanthin) that refine ...