196 
U. S. Pp. R. R. EXP. AND SURVEYS—ZOOLOGY— GENERAL REPORT. 
As stated under the head of Z. traillii, LZ. minimus differs from it in its smaller size, and more 
ashy tinge on the sides of the head, the nape, and rump. The tail feathers are narrower, more 
rounded at the end, and less acuminate. 
the bird is considerably smaller ; the claws also are larger, 
The tarsi are one-tenth of an inch longer, though 
The second, third, and fourth 
quills are generally nearly equal, the latter always considerably exceeding the first, as does the 
fifth also; in ¢railli the fifth is usually nearly the length of the first, or but slightly different 
from it. 
One of the most appreciable differences between the two species lies in the two bands of the 
wing. 
traillit they are strongly tinged with grayish olive. 
These, with the other edgings of the wings in minimus, are dirty grayish white; in 
Both have the outer primary edged with 
yellowish white, and the first tail feather with its outer web paler brownish than elsewhere, 
but not approaching to white. 
Catal. 
No. 
2709 
2450 
2274 
2132 
3371 
1415 
726 
1486 
2563 
2254 
2348 
2163 
2133 
2624 
2650 
2649 
1672 
7415 
7415 
5270 
4700 
4699 
4701 
4702 
4698 
List of specimens. 
Locality. 
Philadelphia ~...---- 
Carlisley Pa-o==-ia——— 
Cleveland, Ohio... 
Chicarowllia==s—==== 
Racine; Wis!) =------- 
Cleveland, Ohio. ---- 
Near Powder river... 
Eau qui court-_....- 
Wermilions) 4.2 ss = 
Nebraskaesse soe sees 
When collected.. Whence obtained. 
ga ee amd | 
eee | 8. F. Baird.--.-... 
Sept. 10, 1845 |_____- owe sana o = 
May 17, 1845 |___.. donssiieie 
April 23, 1845 |_____. dos saesees 
May 3, 1847 |_....- d0zs-tesees- 
May 9; 18443|2ee5 22 dostes-se-5 
Sept el6, 18 47ieo sees do.Sests2.2 
May 8, 1844 |___... Oemering oor 
May 5, 1846 |____.. dovaosasc5e2 
May 12, 1845 | BSB CCe do==Sasa52- 
May 26, 1845|_..._. dova=s—— ssa e 
April 29, 1845 |_____- doe ie spores. 
April 23, 1845 |_..... doteeee- sane 
Mayra ld ,1S846)|b oe domes 22322. 
May 12, 1846 |______ dose 2ae eee 
Eset dossss--|" 4.5 2doues.. S55" 
Aug. 12, 1844} ..__. oss esee 
posSSssausocss Dr. Kirtland -.---- 
May 2, 1855) R. Kennicott..... 
acho nesenesabs Northwestern Univ. 
sconEsaesbacee | Dr. Kirtland._..-- 
Aug. 4, 1856) Lt. Warren.._.--- 
May, 15;-1856 22-225 doe sect 2. 
eSaiae dozen a8 4 |Pocns=dosaeeeaec ee 
Bie dotce et a 292 dos eee ne 
May 6, 1856|...... dome munis | 
May 11, 1856 |--n--- ODacensecses 
Collected by— 
Length. 
Stretch 
jof wings. 
Most ge 90 9 9 oD HM 
o 
Le 2} 
ge 9% g 9 | o% 
PN NP WP NNW we 
a 
_" 
