Birds of America
By John James Audubon, F. R. SS. L. & E.
GENUS VII.--LINARIA, Ray. LINNET.
Bill short, conical, moderately stout, higher than broad at the base,
compressed toward the end, acuminate; upper mandible with the dorsal line
straight, the nasal sinus very short and broad, the ridge distinct and narrow,
the sides convex, the edges ascending at first, afterwards direct, the tip very
narrow, without notches; lower mandible with the angle short and semicircular,
the dorsal line straight or very slightly concave, the sides convex, the tip
acuminate. Nostrils basal, roundish, concealed by the feathers. Head of
moderate size, roundish; neck short; body moderate. Feet of moderate length;
tarsus short, compressed, with seven scutella; toes rather stout, the first
large. Claws long, moderately arched, much compressed, very acute. Plumage
soft and blended. Wings rather long, the first three quills nearly equal, the
second generally longest, the first longer than the third. Tail rather long,
deeply emarginate or forked, with the feathers pointed. Roof of upper mandible
concave, with two ridges; tongue deeper than broad, concave above toward the
point, which is acute; oesophagus enlarged about the middle; stomach roundish,
muscular; intestine of moderate length, slender; coeca very small.