Plate LXXIV. Male and Female.
Male blue, tinged with verdigris-green, on the head approaching to
ultramarine; quills and tail-feathers dusky, edged with greenish-blue.
Female yellowish-brown above, paler beneath. Young like the female.
Male, in the first autumn, of a lighter and duller blue than in the
adult, the feathers of the upper parts tipped with brown, of the lower
with yellowish, in the second year nearly as in the adult, but with
the smaller coverts dull brown.
_Male_, 5-1/4, 7-1/2.
Distributed throughout the United States during summer. Abundant.
Migratory.
Indigo Bird, Fringilla cyanea, Wils. Amer. Orn. v. i. p. 100.
Fringilla cyanea, Bonap. Syn. p. 107.
Indigo Bird, Nutt. Man. v. i. p. 473.
Indigo Bird, Fringilla cyanea, Aud. Orn. Biog. v. i. p. 377;
v. v. p. 503.