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  2. Crest (feathers) - Wikipedia

    en.wikipedia.org/wiki/Crest_(feathers)

    The underlying molecular and genetic mechanisms that are responsible for crest feather formation in domesticated bird species are not well understood. As such, crest feathers are widely studied in morphological research and other related biological disciplines, particularly concerning domesticated species. [5]

  3. Crested chickens - Wikipedia

    en.wikipedia.org/wiki/Crested_chickens

    The development of the feather crest is based on the mutation "Crest" (Cr). Its inheritance is incomplete autosomal dominant. This means, that homozygous but also heterozygous animals show a crest, which is however more pronounced in homozygotes. [2] Skull form of a crested chicken (B) and of a bankiva (A)

  4. File:Citron crest feathers.JPG - Wikipedia

    en.wikipedia.org/wiki/File:Citron_crest_feathers.JPG

    The feathers were found at the bottom of a citron-crested cockatoo's cage over several months. The feathers were maulted naturally which is a painless and normal fo; 2006-06-27 12:55 Snowmanradio 2592×1944×8 (3631908 bytes) Crest feathers from a Citron crested cockatoo. These feathers were given to me by the owner of a citron crested cockatoo.

  5. Feather - Wikipedia

    en.wikipedia.org/wiki/Feather

    Feathers insulate birds from water and cold temperatures. They may also be plucked to line the nest and provide insulation to the eggs and young. The individual feathers in the wings and tail play important roles in controlling flight. [20] Some species have a crest of feathers on their heads. Although feathers are light, a bird's plumage ...

  6. White cockatoo - Wikipedia

    en.wikipedia.org/wiki/White_cockatoo

    Similarly, areas of larger tail feathers that are covered by other tail feathers – and the innermost covered areas of the larger crest feathers – are yellow. Short white feathers grow from and closely cover the upper legs. The feathers of this species and others create a powder similar to talcum powder that easily transfers to clothing.

  7. Secretarybird - Wikipedia

    en.wikipedia.org/wiki/Secretarybird

    Their bare facial skin and legs are yellow. Crest feathers appear at 21 days, and flight feathers by 28 days. They can stand up and feed autonomously after 40 days, although the parents still feed the nestlings after that time. At 60 days, the now fully-feathered young start to flap their wings.

  8. Glossary of bird terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_bird_terms

    Collectively, the/a crest. Long crest feathers are sometimes called quill feathers. [119] Also defined: recumbent crests and recursive crests. A type of semiplume feather with a long rachis with barbs on either side, that often presents as a prominent tuft on the crown and (or through) the neck and upper back.

  9. Crested auklet - Wikipedia

    en.wikipedia.org/wiki/Crested_auklet

    The first is its crest, a group of bristle feathers located on top of its head above its eyes. The second is a social odor that the auklets produce during the breeding season, described as smelling like tangerines. This odor originates from tiny wick feathers, located in a small patch of skin between the shoulder blades. [12]