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Cassin's Sparrow

Cassin's Sparrow - Bird Species | Frinvelis jishebi | ფრინველის ჯიშები

Cassin's Sparrow

Overview

Cassin's Sparrow: Medium, skulking grassland sparrow, fine brown streaks on gray-brown head and back, buff underparts. Tail is long, rounded, white-tipped. Legs, feet are pink-orange. Forages by scratching on the ground. Short flight, alternates several rapid wing beats with wings pulled to sides.

Range and Habitat

Cassin's Sparrow: Breeds from southern Arizona and southwestern Kansas south to southern New Mexico and western and southern Texas; also in Mexico. Spends winters in southern part of breeding range. Preferred habitats include semi-desert or arid uplands supporting yuccas and tall grass.

INTERESTING FACTS

The male Cassin's Sparrow flies straight up in his display flight and then floats downward on fixed wings, singing the entire time. This behavior, distinctive among sparrows, is sometimes called "skylarking."
Their population numbers vary widely in response to summer rainfall. In some years singing males appear at the edge of their range where none usually breed.What causes these movements is unknown, but hypotheses include east-to-west migration, dispersal of birds that were unsuccessful breeding in another area, and nomadism.
They have an unusual molt cycle. The juvenile molts twice in the first six months of life whereas the adult has a long body molt lasting several months, then a much quicker complete molt in fall.
A group of sparrows has many collective nouns, including a "crew", "flutter", "meinie", "quarrel", and "ubiquity" of sparrows.

The Cassin's Sparrow has a large range in North America, reaching up to 2 million square kilometers. The global population of this bird is thought to be extremely large, estimated at around 20 million individual birds. Cassin's Sparrow is native to Mexico, the United States and Canada. Currently, Cassin's Sparrow has a rating of Least Concern. Due to the extremely large size of the population of Cassin's Sparrow, there is no concern that this bird will be in danger in the immediate future.

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