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  2. Bird anatomy - Wikipedia

    en.wikipedia.org/wiki/Bird_anatomy

    Bird anatomy, or the physiological structure of birds' bodies, shows many unique adaptations, mostly aiding flight.Birds have a light skeletal system and light but powerful musculature which, along with circulatory and respiratory systems capable of very high metabolic rates and oxygen supply, permit the bird to fly.

  3. Bird feet and legs - Wikipedia

    en.wikipedia.org/wiki/Bird_feet_and_legs

    The anatomy of bird legs and feet is diverse, encompassing many accommodations to perform a wide variety of functions. [1]Most birds are classified as digitigrade animals, meaning they walk on their toes rather than the entire foot.

  4. Tarsometatarsus - Wikipedia

    en.wikipedia.org/wiki/Tarsometatarsus

    Pigeon skeleton. Number 8 indicates both left and right tarsometatarsus. The tarsometatarsus is a bone that is only found in the lower leg of birds and some non-avian dinosaurs. . It is formed from the fusion of several bones found in other types of animals, and homologous to the mammalian tarsus (ankle bones) and metatarsal bones (foo

  5. Spur (zoology) - Wikipedia

    en.wikipedia.org/wiki/Spur_(zoology)

    A spur is much like a true horn; it is a bony core attached to the skeleton and has an outer horny layer. Like horns, the spur grows from the base outwards, so the tip is older than the base. Some spurs form as an outgrowth of an existing bone, though most are secondarily formed as dermal bone hinged to the skeleton through a semi-rigid joint.

  6. Hawk - Wikipedia

    en.wikipedia.org/wiki/Hawk

    Falconry was once called "hawking", and any bird used for falconry could be referred to as a hawk. [4]Aristotle listed eleven types of ἱέρακες (hierakes, hawks; singular ἱέραξ, hierax): aisalōn (merlin), asterias, hypotriorchēs, kirkos, leios, perkos, phassophonos, phrynologos, pternis, spizias, and triorchēs.

  7. Rough-legged buzzard - Wikipedia

    en.wikipedia.org/wiki/Rough-legged_buzzard

    The rough-legged buzzard (Europe) or rough-legged hawk (North America) (Buteo lagopus) is a medium-large bird of prey. It is found in arctic and subarctic regions of North America, Europe, and Asia during the breeding season, and migrates south for the winter. [ 3 ]

  8. Bird - Wikipedia

    en.wikipedia.org/wiki/Bird

    Most evidence seems to suggest the assignment of orders is accurate, [62] but scientists disagree about the relationships among the orders themselves; evidence from modern bird anatomy, fossils and DNA have all been brought to bear on the problem, but no strong consensus has emerged. Fossil and molecular evidence from the 2010s is providing an ...

  9. Glossary of bird terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_bird_terms

    The topographical region of a bird's external anatomy between the throat and the belly. [52] breeding plumage See alternate plumage. brood The collective term for the offspring of birds, or the act of brooding the eggs. [53] brooding See egg incubation. broodiness

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