184 VELLOW-HEADED TROOPIAL. 
green on the margin of the outer web; the inner margins, 
with the exception of the two middle ones, are whitish. 
Until their first moult, the young of both sexes are much 
like the adult female, except in being destitute of the yellow 
spot on the crest, which is greenish olive. In this state, how- 
ever, they are not seen here, as they breed farther to the north, 
and moult before their arrival in the autumn. 
YELLOW-HEADED TROOPIAL. (leterus ictero- 
cephalus.) 
PLATE III.—Fic. 1, MALE; Fic. 2, FEMALE. 
Oriolus icterocephalus, Linn. Syst. i. p. 163, sp. 16.—Gmel. Syst. i. p. 392, sp. 
16.—Lath. Ind. p. 183, sp. 32, male.—Icterus icterocephalus, Daudin, Orn. 
ii. p. 337, sp. 9, male.—Pendulinus icterocephalus, Vieill. Nouv. Dict. d Hist. 
Nat. v. p. 317, male.—Icterus xanthornus icterocephalus Cayanensis, Briss. 
Av, ii, p. 124, sp. 27, pl. 12, fig. 4, male.—Cornix atra; capite, collo, pec- 
toreque flavis, Koelreuter, Nov. Comm. Ac. Sc. Petrop. xi. p. 435, pl. 15, fig. 
7, maale.—Les Coiffes Jaunes, Buff. Ois. iii. p. 250, male. —Carouge de Cayenne, 
Buff. Pl. enl. 343, male-—Yellow-headed Starling, Edw. Glean. iil. p. 241, pl. 
323, male.—Yellow-headed Oriole, Lath. Syn.i. part 2, p. 441, sp. 30, male.— 
Philadelphia Museum, No. 1528, male; No. 1529, female. 
AGLAIUS ICTEROCEPHALUS.—Jarvine.* 
Icterus (subgen. Xanthornus) xanthocephalus, Bonap. Synop. p. 52.—Aglaius 
xanthocephalus, North. Zool. ii. p. 281. 
AurHoucH this species has long been known to naturalists as 
an inhabitant of South America, and its name introduced into 
all their works, yet they have given us no other information 
concerning it than that it is black with a yellow head and 
neck. It was added to the fauna of the United States by the 
expedition of Major Long to the Rocky Mountains. 
* T have retained what appears to be the old specific name for this 
bird, and which also seems to be the view of our author. Another has 
been selected in the ‘‘ Northern Zoology,” where this bird is described 
from species obtained during the last expedition. It is mentioned as 
reaching the Saskatchewan about the 20th of May, and being even more 
numerous than the redwings; commits great havoc among the corn- 
fields. —Eb. 
