122 
D. S. P. R. E. EXP. AND SURVEYS ZOOLOGY GENERAL REPORT. 
List of specimens. 
5948 
<? 
5949 
8 
5950 
9 
5951 
9 
6167 
6168 
ji 
o 
C169 
9 
6170 
3 
6171 
8 
6165 
8 
6166 
9 
1887 
9 
1886 
8 
4454 
8 
6161 
8 
4209 
8 
4-210 
9 
4453 
3902 
9 
6162 
8 
6163 
9 
6160 
9 
6172 
5072 
8 
50 13 
8 
5074 
9 
6161 
9 
6159 
8 
4041 
o 
5601 
8 
5602 
8 
t-226 
9 
8217 
8 
8218 
9 
When collected. 
Fort Steilacoom, W. T. 
Fort Vancouver, W. T. 
do 
Columbia river 
Fort Heading, Cal.. 
Bodega, Cal 
California 
Tejon valley, Cal. ... 
do 
Camp 134, N. M 
Fort Thorn, N. M... 
Fort Fillmore, N. M. 
El Paso, N.M 
San Elizario, Texas. 
Saltillo, Mexico.... 
Republican F'k of Platte 
Republican F'k of Platte. 
Kansas. 
Fort Laramie 
Whence obtained 
Feb. 15, 
Jan. 15, 
March — , 
May 10, 
May 13, 
Jan. 9, 
Oct. 17, 
Nov. 27, 
Oct. 17, 
Dec. — , 
May — , 
October 1,1856 
Sept. 24,1856 
Sept. 11,1857 
do 
do 
Gov. Stevens. 
do , 
Or. Suckley.., 
Gov. Stevens. 
do 
S. F. Baird... 
Lt. Williamson.. . 
Lt. Trowbridge. . 
R. D.Cutts 
Lt. Williamson. 
Dr. Heermann.. 
Lt. Williamson. 
Lt. Whipple 
Dr. T. C .Henry. 
Capt. J. Pope ... 
Maj. Emory. 
Lt. Couch... 
Lt. F. T. Bryan ... 366 
Lt. F.T. Bryan...! 350 
W. M. Magraw... 
Dr. Cooper 
do 
J. K. Townsend. 
Dr. Newberry. 
Mr. Szabo 
Dr. Newberry. 
Dr. Heermann. 
do 
Dr. Kennedy. . 
13.00 
13.00 
13.00 
12.50 
13.25 
13.25 
13.25 
12.50 
13.50 
Dr. Kennerly. 
W.S.Wood.. 
W. S. Wood. 
Dr. Cooper. .. 
do 
lo 
12.25 
13.00 
13.00 
19.75 
21. 
21. 
23.25 
20.50 
21.00 
21.00 
7. 
6.50 
Young 
Gums light blue 
do 
Eyes brown, feet gray. 
Eyes deep crimson, bil 1 
dark slate, feet lead. 
6.75 
7.00 
6.50 
COLAPTES HYBRIDUS, Baird. 
Colaptes ayresii, Aim. Birds Am. VII, 1843, 348 ; pi. 494. 
? Geopicus chrysoides, Malhekbe, Rev. et. Mag. Zool. IV, 1852, 553. (Differs from C. auratus in wanting red nape ) 
Sp Ch. — Yellow shafts or feathers on wing and tail combined with red or red spotted cheek patches. Orange shafts combined 
witii a weli defined nuchal red crescent. Ash colored throat combined with black cheek patch, or yellow shafts. Shafts and 
feathers intermediate between gamboge yellow and dark orange red. 
By the above name I intend to cover a remarkable series of woodpeckers from the upper 
Missouri and Yellowstone, combining the characteristics of the Colaptes auratus and mexicanus 
in proportions varying with almost each individual, and leading irresistibly to the conclusion 
that they are descendants of originals of the species mentioned above, mixed up by inter- 
breeding of successive generations, to a degree unparalleled in the annals of ornithology. I 
have, in the two preceeding articles, gone into much detail in respect to the characters of 
Colaptes auratus and mexicanus, and under the first named head have shown the particular 
point of difference. 
