Refers to birds in the Order Passeriformes, the largest order of birds. They also are called "perching birds," because their feet work well for perching on branches or stems. Passerines include sparrows, starlings, cardinals, crows, jays, chickadees, flycatchers, and many more. There are about 4,600 species (almost half all bird species) in the Order Passeriformes.
birds belonging to the large group of “perching birds” that include sparrows, finches, buntings, cardinals, crows, jays, ravens, warblers, blackbirds, etc.
Of or relating to the largest order (Passeriformes) of birds, which includes more than half of all living birds and consists primarily of perching songbirds, whose young are hatched in an immature and helpless condition. [Go to source