BIRDS — TYEANNINAE — EMPIDONAX. 
191 
of this species is very broad. The tail is moderately forked ; the feathers broad, with sides nearly 
parallel, becoming scarcely dilated from the base to the end. The feet are very short. The 
wing is very long and pointed, reaching considerably beyond the middle of the tail, and beyond 
the tail coverts. The proportions of the quills vary, although the second is always a little 
longer than the third. The first is generally a little shorter than the fourth ; sometimes about 
equal, and .25 of an inch shorter than the second. The under tail coverts are much tinged 
with brown in their median region. 
In No. 1632 the first quill is proportionably shorter ; the fourth longer than as described ; 
the third quill slightly longest. The relative proportion of the first to the fourth, in fact, varies 
a good deal, but the first always considerably exceeds the fifth. 
I have seen no specimen of this species from the region west of the Missouri plains, except 
two in Lieutenant Williamson's collection marked Sacramento valley by Dr. Heermann. All 
those of the same type belong to a different though closely allied species, and it is most proba- 
ble that some mistake may have occurred in the locality. Dr. Heermann, in his notes on Birds 
of California, refers to supposed specimens of Tyrannula virens as being all darker than eastern 
ones, evidently having the richardsonii in view. 
Lid of specimens. 
Eastern United States. 
Carlisle, Pa 
Washington, D. 0. 
Sa\ annali, Ga 
■South Illinois , 
Independence, Mc 
Red river, M. T. 
Sac. valley ?. ... 
New Grenada. 
Guatemala ... 
When co 
lected. 
May 11, 1846 
May 12, 1846 
May 6, 1846 
May 16, 1843 
May 20, 1845 
July 12,1844 
May 26, 1845 
May 17, 1844 
July — , 1844 
May 21, 1845 
May 18, 1845 
July — , 1843 
Wm. Ilutton. 
S.F. Baird .. 
R.Kennicott, 
Dr. Cooper. . . 
li. K 
M. Verreaux. 
J. Gould 
6.91 
6.50 
9.25 
6.16 
C 16 
6.33 
6.66 
Strefii 
>l" wings 
10. 
10.41 
10.00 
9.66 
10.50 
10.41 
10.58 
10.75 
10.00 
9.50 
3.58 
3.54 
3.50 
3.25 
3.41 
3.17 
3.54 
3.50 
3.50 
3.50 
EMPIDONAX, Cabanis. 
Empidonax, Cabanis, Journal fur Ornithologie, III, Nov. 1855, 480, (type Tyrannula pusilla.) 
Tyrannula of most authors . 
Ch. — Tarsus lengthened, considerably longer than the middle toe, which is decidedly longer than the hind toe. Bill 
variable. Tail very slightly forked, even, or rounded ; a little shorter only than the wings, which are considerably rounded ; 
the first primary much shorter than the fourth. Head moderately crested. Color olivaceous above, yellowish beneath ; throat 
generally gray. 
The lengthened tarsi, the short toes, the short and rounded wings, and the plain dull 
