BIRDS TYEANNINAE — EMPIDONAX HAMMONDII. 



199 



That this species is not the T. pusilla of Swainson is sufficiently evident from the fact that 

 the bands on the wing in the latter are said to be grayish white, the throat ash gray, a whitish 

 ring round the eye, &c. ; all these parts in faviventris being strongly tinged with yellowish. 

 The proportions of the quills, too, are different. 



I have quoted Tyrannula pusilla of Keinhardt and Gloger, a species captured in 1853 in the 

 Godthaab district of Greenland, as coming much nearer to the present species than to pusilla 

 of Swainson. 



CatBl.i Sex. 



No. I 



1951 

 3339 

 985 

 3972 

 3352 

 2351 

 3350 



5930 ' 

 7243 



Locality. 



Raynor Sound. Long Island, 

 Carlisle. Pa 



.do . 

 .do . 

 .do . 

 .do. 

 .do . 

 .do. 

 .do . 



West Northfield, Illinois . 



Racine, Wisconsin 



Fort Steilacooni 



Shoalwater Bay 



Port Tejon, California . . . . 

 Coban 



When collected. 



Aug. 4, 1831 

 iVlay 24, 1845 

 May 18, 1843 

 May 18, 1846 

 May 26, 1845 

 do 



do 



Sept. 4, 1845 

 May — , 1845 

 May 19, 1855 



July 4, 1854 



Whence obtained. 



Original 

 No. 



S. F.Baird 



do 



, do 



do 



, do 



do , 



do 



do 



do 



R. Kennicott 



do 



Dr. Cooper 



do 



J. Xanlus de Vesey. 

 M. Verreaux 



Length. 



5.16 

 5.50 

 S.50 

 5.41 

 5.54 

 5.25 

 5.25 



5.60 

 5.50 



32613 



Extent. Wing. 



8.83 

 8.25 

 9. 



8.08 

 8.58 

 8.50 

 8. 



8.50 

 8.50 



2.83 



2.50 

 2.75 

 2.50 

 2.75 

 2.58 

 2.58 



Remarks. 



Iris Brown.. 

 Iris brown. . 



EMPIDONAX HAMMONDII, Baird. 



Tyrannnla hammondii, De Veset, Pr. A. N. Sc. May, 1858. 



Sp. Ch. — Tail moderately forked ; the feathers acutely pointed. Third quill longest ; secopd and then fourth a little shorter. 

 First much shorter than fifth, a little longer than sixth. Bill very slender, dark brown. Above dark olive green, consider- 

 ably darker on the head. Breast and sides of the body light olive green, the throat grayish white; the rest of under 

 parts bright sulphur yellow. A whitish ring round the eye. Wings and tail dark brown ; the former witli two olivaceous gray 

 bands across the coverts; the latter with the outer edge a little paler than elsewhere, but not at all white. Length, 5.50 ; 

 wing, 2.80 ; tail, 2.50 ; tarsus, .G7. 



Hah. — Vicinity of Fort Tejon to Los Angeles. 



In this species the olive green on the sides is scarcely distinguishable from that on the back, 

 although becoming more yellow on the middle of the breast. There is a decided ashy shade on 

 the whole head. The only light edging to the quills is seen on the terminal half of the 

 secondaries. The upper mandible and feet are black; the tip of the lower (and in one specimen 

 the whole) dark brown. The fork of the tail measures a quarter of an inch in dei^th ; the 

 longest quill exceeds the first by .40. 



This species is at once distinguishable from all the North American Tyrannulas, except 

 dbscurus, by the extreme narrowness of the bill. This is only .25 of an inch wide at the 

 posterior angle of the mouth, and only .19 at the nostrils. Its colors above are those of 

 acadicus, while the general effect is much more that of jlavivenlris, although less brightly 

 olive. The throat is grayish, not of the same yellow with the belly ; the ring round the eye 

 white, not yellow ; the olive of the breast much more continuous and distinct ; the bands on 

 the wings dull grayish instead of clear greenish yellow. The tail, instead of being nearly 

 even, is quite deeply forked. The bill is scarcely half as wide, and brownish, not yellow, 

 beneath. The tarsus has the same peculiar scutellation. 



The differences from T. obscurus are less easily expressed. It is, however, considerably 



