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The black-capped chickadee is the state bird of Massachusetts. This list of birds of Massachusetts includes species documented in the U.S. state of Massachusetts and accepted by the Massachusetts Avian Records Committee (MARC). As of July 2023, there are 516 species included in the official list. Of them, 194 are on the review list (see below), six have been introduced to North America, three ...
Accipitridae is a family of birds of prey, which includes hawks, eagles, kites, harriers, and Old World vultures. These birds have very large powerful hooked beaks for tearing flesh from their prey, strong legs, powerful talons, and keen eyesight. Eighteen species have been recorded in Nevada. White-tailed kite, Elanus leucurus
The beak, bill, or rostrum is an external anatomical structure found mostly in birds, but also in turtles, non-avian dinosaurs and a few mammals. A beak is used for pecking, grasping, and holding (in probing for food, eating, manipulating and carrying objects, killing prey, or fighting), preening, courtship, and feeding young.
The eastern bluebird is New York's state bird The following list of birds of New York included the 503 species and a species pair of wild birds documented in New York as of August 2022. Unless noted otherwise, the source is the Checklist of New York State Birds published by the New York State Avian Records Committee (NYSARC) of the New York State Ornithological Association. These species ...
Over time, natural selection favored finches with sharper, longer beaks. These birds were better equipped to quickly and easily pierce the skin of their booby bird neighbors. Vampire finches still ...
Accipitridae is a family of birds of prey, which includes hawks, eagles, kites, harriers, and Old World vultures. These birds have very large powerful hooked beaks for tearing flesh from their prey, strong legs, powerful talons, and keen eyesight. Fifteen species have been recorded in Washington. White-tailed kite, Elanus leucurus (A)
The same group showed that the development of the different beak shapes in Darwin's finches are also influenced by slightly different timing and spatial expressions of a gene called calmodulin (CaM). [39] Calmodulin acts in a similar way to BMP4, affecting some of the features of beak growth like making them long and pointy. The authors suggest ...
Accipitridae is a family of birds of prey, which includes hawks, eagles, kites, harriers, and Old World vultures. These birds have very large powerful hooked beaks for tearing flesh from their prey, strong legs, powerful talons and keen eyesight. Nineteen species have been recorded in Virginia. White-tailed kite, Elanus leucurus (A)