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Bird. Birds are a group of warm-blooded vertebrates constituting the class Aves ( / ˈeɪviːz / ), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.
- Bird (película) - Wikipedia, la enciclopedia libre
Bird es una película biográfica estadounidense de 1988....
- List of birds by common name - Wikipedia
In this list of birds by common name, a total of 10,976...
- Bird - Wikipedia, la enciclopedia libre
Bird (‘pájaro’, en inglés) —o su plural Birds, así como la...
- Bird - Simple English Wikipedia, the free encyclopedia
Birds live all over the world. They range in size from the 5...
- Bird (película) - Wikipedia, la enciclopedia libre
Bowerbirds (/ ˈ b aʊ. ər b ɜːr d /) make up the bird family Ptilonorhynchidae. They are renowned for their unique courtship behaviour, where males build a structure and decorate it with sticks and brightly coloured objects in an attempt to attract a mate. The family has 27 species in eight genera.
The evolution of birds began in the Jurassic Period, with the earliest birds derived from a clade of theropod dinosaurs named Paraves. [1] Birds are categorized as a biological class, Aves. For more than a century, the small theropod dinosaur Archaeopteryx lithographica from the Late Jurassic period was considered to have been the ...
