140 REVIEW OF AMERICAN BIRDS. [PART I. 
from Florida). No. 26,368, however, probably killed in spring, has 
the breast gray, and, as in some specimens of adon, the feathers 
faintly spotted with brownish. 
From the paler shade of the upper parts, and possibly a rather 
smaller size, I am inclined to consider these Mexican ape as 
residents, and not migrants from the north. 
A specimen (7,139) collected south of the Rio Grande, by Lt. 
Couch, agrees better with the Mexican variety, than with 7. park- 
manni, to which I had referred it. 
Smith- |Collec-) Sex wher 
souian| tor’s | and Locality. Gollecrad Received from Collected by 
No. No. | Age. 4 
7,139 54 fof Charco Escondido, 
Tamaulipas. ate DN, (Couch | tt a careers 
29,206 | 106 Orizaba, Mex. eis Ke Sumichrast: 5. Sian eee 
30,872 45 Mirador, Mex. Dec. 1862. Dr. Sartorius. © «|e sere. 
26,368 Se Xalapa, Mex. B46 J. Krider. D’0ca 
as 110 $s Cab. Lawrence. « 
(7,139.) Eyes dark-brown. (380,872.) Iris brown 
Troglodytes parkmanni. 
Troglodytes parkmanni, Aup. Orn. Biog. V, 1839, 310.—Is. Synopsis, 
1839, 76.—Is. Birds Amer. II, 1841, 133, pl. 122.—Bairp, Birds 
N. Am. 1858, 367.—Coorrr & Suckuey, P. R. R. Rep. XII, m1, 1860, 
191 (nest).—Scrater, Catal. 1861, 23, no. 146. 
Troglodytes sylvestris, GAmBEL, Pr. A. N. Se. III, 1846, 113 (California, 
quotes erroneously Aup. 7’. americanus). 
TTab. Western and Middle provinces of United States. 
Although the differences between the eastern and western House 
Wrens, as stated in the “ Birds N. Am.,” are not very appreciable; 
yet a comparison of an extensive series shows that they can hardly 
be considered as identical. The general color above is paler and 
grayer, and there is little or none of the rufous of the lower back 
and rump. The bars on the upper surface are rather more distinct. 
The under parts are more alike, as while edon sometimes has flanks 
and crissum strongly tinged with rufous, other specimens are as pale 
as in J. parkmannt. 
Perhaps the most appreciable differences between the two species 
are to be found in the size and proportions of wing and tail. The 
wing in parkmanni is quite decidedly longer than in adon, measur- 
ing, in males, 2.12 to 2.15, instead of 2.00 to 2.05. This is due not 
so much to a larger size as to a greater development of the primaries. 
The first quill is equal to or barely more than half the second in 
