Bullock’s Oriole 313 
with white ; tail-feathers, except the central pair, pale yellow crossed 
by a basal band of black; iris brown, bill blackish, bluish at base 
of the lower mandible; legs dusky horn. Length 6-75; wing 3-75; 
tail 2-85 ; culmen -72; tarsus -90. 
The female has the upper-parts dull saffron-olive, brightest on the 
rump and upper tail-coverts, duskier in the middle of the back; the 
wings dusky black with the feathers edged with whitish ; below saffron 
or dull orange-yellow throughout, the throat sometimes with, some- 
times without, black. The young male is like the female, or intermediate 
between it and the male. 
Distribution.—Breeding throughout eastern North America from 
Manitoba and Nova Scotia to the Carolinas and Texas, wintering in 
eastern Mexico and Central America as far as Venezuela and Colombia. 
The Baltimore Oriole is a common summer resident as far west as 
Kansas, but can only be considered a straggler in Colorado. Allen 
records it from near Denver, and Morrison states that it is common 
at Fort Lyon, but in both these cases it was probably mistaken 
for Bullock’s Oriole. Mr. Aiken tells me he has never met with it in 
Colorado, and the records attributed to him by Baird, Brewer and 
Ridgway (74) and by Cooke (97) are based on a misunderstanding. 
Henderson (05), however, states that it has recently (May 22nd-23rd, 
1905) been observed by Miss J. M. Patten at Yuma, in the north-eastern 
part of the State, while H. G. Smith reports that he found it fairly 
common and nesting in early June at Boyes Ranch near Wray, and 
that Bullock’s Oriole was also not uncommon in the same locality. 
Bullock’s Oriole. Icterus bullocki. 
A.O.U. Checklist no 508—Colorado Records—Ridgway 73, p. 183; 
Henshaw 75, p. 320; Allen & Brewster 83, p. 193; Drew 85, p. 16; 
Beckham 85, p. 142; 87, p. 124; Morrison 89, p. 148; Kellogg 90, 
p- 90; Lowe 92, p. 101; H. G. Smith 93, p. 244; Cooke 97, pp. 19, 
95, 211; Keyser 02, p. 33; Dille 03, p. 74; Henderson 03, p. 236; 
09, p. 234; Warren 06, p. 22; 08, p. 22; Markman 07, p. 157; Gilman 
07, p. 156; Rockwell 08, p. 170. 
Description.—Male in summer—Crown, back, scapulars, lores, a 
narrow postocular stripe, chin and narrow throat-stripe, the greater 
part of the tail, and wings black ; most of the wing-coverts white, form- 
ing wu conspicuous patch, the primaries and secondaries edged with 
white ; rest of the body, including the forehead, superciliary region, 
lower-back, rump and under-parts orange-yellow, richest on the sides 
of the head and breast; tail with the central feathers black, the 
outer yellow, the others black and yellow; iris brown, bill black, 
Jegs dusky horn. Length 7-4; wing 4-10; tail 3-20; culmen -7; 
tarsus ‘9. 
