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The scales and scutes of birds were thought to be homologous to those of reptiles, [4] but are now agreed to have evolved independently, being degenerate feathers. [ 5 ] [ 6 ] Carcharodontosaurid theropod dinosaur Concavenator , is known to have possessed these feather-derived tarsal scutes.
The scales of birds are composed of keratin, like beaks, claws, and spurs. They are found mainly on the toes and tarsi (lower leg of birds), usually up to the tibio-tarsal joint, but may be found further up the legs in some birds. In many of the eagles and owls, the legs are feathered down to (but not including) their toes.
The scales of birds are composed of the same keratin as beaks, claws, and spurs. They are found mainly on the toes and metatarsus, but may be found further up on the ankle in some birds. Most bird scales do not overlap significantly, except in the cases of kingfishers and woodpeckers.
In ornithology, the lore is the region between the eye and bill on the side of a bird's head. [1] This region is sometimes featherless, and the skin may be tinted, as in many species of the cormorant family. [2] This area, which is directly in front of the eye, features a "loral stripe" in many bird species including the red-capped plover.
Bird measurement or bird biometrics are approaches to quantify the size of birds in scientific studies. The variation in dimensions and weights across birds is one of the fundamental sources of diversity among birds, and even Within species, dimensions may vary across populations within species , between the sexes and depending on age and ...
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The hilarious video was shared by the TikTok account for @Kiki.tiel and people can't get enough of this musical bird. One person commented, "You didn’t turn it off, just snoozed it."
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