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Sources: U.S. Fish and Wildlife Service National Digital Library, Getty Images. Methodology: Photos were manually selected to find images of birds in a similar pose, with good lighting and for ...
The four pigments in a bird's cone cells (in this example, estrildid finches) extend the range of color vision into the ultraviolet. [1]Tetrachromacy (from Greek tetra, meaning "four" and chroma, meaning "color") is the condition of possessing four independent channels for conveying color information, or possessing four types of cone cell in the eye.
The kagu possesses 'nasal corns', structures covering its nostrils, which are a feature not shared by any other bird. This bird is a juvenile, lacking the brightly coloured bill of the adult. The kagu is a ground-living bird, 55 cm (21 + 1 ⁄ 2 in) in length. The weight can vary considerably by individual and by season, ranging from 700 to ...
Openclipart, also called Open Clip Art Library, is an online media repository of free-content vector clip art.The project hosts over 160,000 free graphics and has billed itself as "the largest community of artists making the best free original clipart for you to use for absolutely any reason".
This is one of the largest collections of public domain images online (clip art and photos), and the fastest-loading. Maintainer vets all images and promptly answers email inquiries. Open Clip Art – This project is an archive of public domain clip art. The clip art is stored in the W3C scalable vector graphics (SVG) format.
Quetzals (/ k ɛ t ˈ s ɑː l, ˈ k ɛ t s əl /) are strikingly colored birds in the trogon family. They are found in forests, especially in humid highlands, with the five species from the genus Pharomachrus being exclusively Neotropical, while a single species, the eared quetzal, Euptilotis neoxenus, is found in Guatemala, sometimes in Mexico and very locally in the southernmost United ...
Colour mutations are a natural but very rare phenomenon that occur in either captivity or the wild. About fifteen primary colour mutations have been established in the species which enable the production of many different combinations. Note that this article is heavily based on the captive or companion cockatiel rather than the wild cockatiel ...
Winning photos were chosen out of 15,000 submissions across eight categories: Young Photographer, Wildlife, Portfolio, Human Connection, Fine Art, Conservation — Impact, Conservation — Hope ...