Birds of America
By John James Audubon, F. R. SS. L. & E.
VOLUME IV.
GENUS III.--GARRULUS, Briss. JAY.
Bill of moderate length, strong, straight, compressed, rather pointed;
upper mandible with the dorsal line slightly arched, the ridge scarcely
distinct, the sides sloping, the edges nearly straight, sharp, and overlapping,
the notches slight, the tip slightly depressed; lower mandible with the angle of
moderate length, rather wide, the dorsal line ascending, slightly convex, the
sides sloping outwards, the edges direct, the tip acute. Nostrils basal,
elliptical, covered by reversed stiffish feathers. Head rather large; neck
short; body stout. Feet of moderate length, rather stout; tarsus of ordinary
length, compressed, with eight scutella; toes moderate, the first large, the
outer considerably longer than the inner; claws well-arched, rather long,
compressed, acute. Plumage blended; small bristles at the base of the upper
mandible; feathers of the head generally elongated; wings rather short, first
quill very short, fourth and fifth longest; tail rather long, much rounded.
Roof of upper mandible concave, with three ridges; digestive organs as in
Corvus.