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Webster 1913 Edition

Noun.

[So called from the length of the hind claw.]

(Zool.)

Any one of several species of fringilline birds of the genus

Calcarius

(or

Plectrophanes

), and allied genera. The Lapland longspur (

Calcarius Lapponicus

), the chestnut-colored longspur (

Calcarius ornatus

), and other species, inhabit the United States.

A longspur

longspur ‎(plural longspurs)

A specific type of bird, of the genus Calcarius; it has a long claw on the hind toe of each foot.

a bird of the genus Calcarius