4 
180 U. 8 P. RB. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
List of specimens. 
Catal. |Sex and Locality. Whencol- | Whence obtained. | Orig. | Collected by— | Length. | Stretch |Wing. Remarks. 
No. age. lected. No. of wings. 
5508 fot Petaluma, Sonoma Co., 
Cal .ccecvvnvessvcees | E. Samuels ......-+ 
5509) Sunil seeeeis G5 googoogonp 0000 | April —, 1856 |...... (tN 3 pancageano 
7207 | eves eves San Francisco, Cal.....|.ecesesseeeees R.D. Cutts.....066 
7209 | .ceeceee|-cevee dO. .ccccreccceee looceece o|ecsees dO. wesee 
4956 |......../ San José, Cal...... cose jeee ..| A. J. Grayson 
3720 Los Angeles, Cal....... eeore'sleis wel WWE Utton seccsstocee able 
7210 Posa Creek cccccccccccs | --| Lt. R. Williamson.. ++] Dr. Heermann....|..cccces|eecscces| scenes 
. -| Fort Tejon, Cal........ | John X. de Vesey..|4...0:] seecsccccesccecs 
4608 |. .| Colorado bottom, Cal...) Mar. 31, 1854 | Major Emory ...... A. Sghott. 
4588 Gila river, N. M........ Dec. 31, 1854 |...... Ojereenecclevss || GO| hocceciecss ccine sss 
T7208 | woes voce Los Nogales, Mex.,.... June —, 1853 |...... dO. cecccvevcs loo oo.| Dr. Kemnerly ooe.| .-.ccccleeserece|sccees| soveeccecees eecceenes . 
7211 Frontera, Texas cle slsie Grate seclesiesiere 32 | J. H. Clark 
San Antonio, Texas..,./... ..| Capt. Sitgreaves...|...... Dr. Wo0dhouse..|...+....[sccecees|soceee| ceccee cecececcces @cese 
7213 Eagle pass, Texas...... Major Emory .eeees| eee A.Schott..... ove] vencieciecfescccces|cecces| cecese veces ssecee aces 
7212 Q Saltillo, Coahuila, Mex. Lt. Couch......... Q21 |rccvcccvecsecccecs 8.00 | 11.50 | 3.62 | Eyes dark brown, bill 
: black, feet dark slate. 
7940 |.eeeeeee| MOXICOscccsccveeccenes| secseseceeceee J. Gould........ees ceecceleccecccccveeeecesslsosecccclers eee Peed eee oe peeeeees 
MYIARCHUS COOPERI, Baird. 
Tyrannula cooperi, Kaur, Pr. Zool. Soc. 1851, 51, (not of Nuttall.) 
Sp. Cu.—Wiadth of bill above grayish olive. Throat and upper part of breast light ash gray ; rest of under parts pale sulphur 
yellow. Two light-colored bands on the wings; the primaries, except the first, margined externally and internally with rufous. 
Tail feathers rufous, the outer webs, and a stripe on the inner side of the shuft extending in a straight line to the tip, brown. 
This inner stripe is a little wider than the outer web on the outer feather, but diminishes somewhat to the central ones. 
Length, 8.50 ; wing, 4; tail, 3.90; tarsus, .95. 
Hab.—Mexico. 
This species of flycatcher is very similar to WZ. crinitus, and, in fact, occupies a position inter- 
mediate in color between it and mexicanus, though larger, perhaps, than either. The superiority 
in size over JZ. crinitus is chiefly noticeable in the tarsus, which is about .12 of an inch longer, 
and in the bill; the wing is, however, shorter. The third quill is longest ; the second and fourth 
but little less; the first a little longer than the seventh. The coloration is much the same 
with mexicanus, being considerably paler and grayer than crinitus. The yellow of the breast is 
a little deeper than in mexicanus, and the throat a very little darker. The upper parts are like 
mexicanus, and there is a decided pure gray shade on the forehead and on the back of the neck, 
and to a less extent on the rump. 
This species differs from crinitus, as stated, in the larger bill and tarsi, and shorter wings, 
with a much paler tint of coloration. Both have the tail similar in the continuation of the 
reddish of the tail to the extreme tip, instead of having this tip brown as in mexicanus. The 
tail is more nearly even, however, and the brown stripe on the inside of the shaft is wider than 
the outer web on the exterior feather, as wide on the second, and gradually diminishing to the 
fifth, where it is about one-fourth the width of the outer web. In JZ. crinitus the brown stripe 
on the inner web is scarcely half the width of the outer web, and quite pale. On the fifth 
feather it does not cross the shaft at all; while in some specimens this color is scarcely appreci- 
able on the inner webs of any but the exterior feathers. The bill is quite black. 
From meaicanus this species is distinguished by the larger size and much broader bill 
