PASSERES — MUSCICAPID2E — MUSCICAPA. 
113 
THE YELLOW-BELLIED FLYCATCHER. 
Muscicapa flaviventris. 
Muscicapn flaviventris. Baird, Proceedings Ac. Nat. Sc. Vol. 1, p. 283. 
M. id. Audubon, B. of A. Vol. 7, p. 341, pi. 490 (male). 
Characteristics. Olive green : sulphur-yellow beneath. Front dark olive. Orbits yellow. 
Tail emarginate. Length, 5 - 1. 
Description. Bill broad and robust, tapering rapidly to the point; ridge on the upper 
mandible obvious : bristles on the front and sides of the base of the bill. Wings 2'5. Third 
and fourth quills subequal, or the fourth slightly longest; first and sixth subequal. Feathers 
of the head somewhat elongated, but scarcely forming a definite crest. Tail 1 • 9, emarginate. 
Color. Bill blackish brown above ; flesh-colored beneath. Head and body above dark 
glossy olive green; the head, in certain lights, exhibiting obsolete darker spots. Circle round 
the eyes, and an obsolete streak towards the bill, light yellowish. Abdomen, under tail- 
coverts and axillaries light sulphur-yellow. Neck and breast light yellow olive. Ridge of 
the wings bright yellow. Quills and tail light hair-brown. Lower row of lesser wing-coverts 
and secondary coverts tipped with yellowish white, forming two bands across the wings. 
Wing-coverts and secondaries brownish black. Secondaries edged anteriorly with yellowish 
white. Female, smaller. 
Length, 5 • 1 - 5'2. 
This beautiful little species was first discovered by Mr. S. F. Baird, at Carlisle, Pennsyl¬ 
vania, and described in the work cited above. In a general system it must follow M. acadica, 
with which it is closely allied. Its distinctive characters appear to consist mainly in the deep 
yellow color of its abdomen, and its emarginate tail. The specimen above described was 
kindly communicated by Mr. Giraud, from the cabinet of G. W. Lawrence, who procured it 
from Long island, where it is doubtless not uncommon, although it had been previously con¬ 
founded by Mr. Audubon and other ornithologists with the M. acadica. 
[Fauna—Part 2.] 
15 
