passerine

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Related to Passeriform: Perching birds

passerine

(păs′ə-rīn′)
adj.
Of or relating to birds of the order Passeriformes, which have feet specialized for grasping branches and similar structures, with the first toe facing backward. The order includes the songbirds and certain other groups, such as the flycatchers of the Americas.
n.
A bird of the order Passeriformes. Also called perching bird.

passerine

any member of the avian order Passeriformes (singing or perching birds), which includes some half of the known species of birds.