128 
FRINGILLA PSALTR1A. 
and. probably is also to be found in Mexico. The only- 
specimen brought by the party was shot on the 16 th of 
July, near Boiling Spring Creek. 
The Ark an saw siskin is four inches and a quarter 
long ; the bill is yellowish, tipped with blackish ; the 
feet are flesh colour ; the irides burnt umber. The top 
of the head is blue black ; the cheeks are dusky oliva- 
ceous ; the neck above, and half its side, the back, and 
rump, are olivaceous, more or less intermixed with 
dusky and yellowish, particularly on the rump; the 
superior tail-coverts are black, varied with olivaceous ; 
all the under parts, from the very base of the bill to 
the under tail-coverts, inclusively, are of a pure bright 
yellow. The wings are brownish black, the smaller 
wing-coverts being very slightly tinged with blue, and 
edged with olivaceous ; the greater wing-coverts are 
tipped with white, which forms a narrow band across 
the wing; the primaries, excepting the exterior one, 
are slightly edged with white ; the third, fourth, fifth, 
sixth, and seventh, are white towards the base, so as to 
exhibit a white spot beyond the wing-coverts ; the first 
four primaries are nearly equal in length, the fifth is a 
quarter of an inch shorter ; the secondaries are broadly 
margined with white exteriorly, towards their tips. 
The tail is slightly emarginated, the feathers being 
blackish, slightly edged with dull whitish ; the three 
exterior ones are widely pure white on the middle of 
their inner webs. 
The specimen we have just described is a male, 
evidently in perfect plumage ; the female, and state of 
imperfect plumage, are unknown; but, without risking 
any great deviation from the truth, we may state, from 
analogy, that the young resemble the female, which 
must be destitute of the black cap, and have the colours 
less vivid and less pure. 
The Ark ansa w siskin certainly resembles the Ame- 
rican goldfinch in its winter dress ; but a still more 
striking similarity exists in some other birds, such as 
the European siskin, (Fringilla spinus ,) and the Oli- 
varez, (F ring ilia magellamca,Y ieill.) of South America ; 
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