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 tailcoverts, 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 {7-4) 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 vmcommon in the same locality. 



Bullock's Oriole, Icterus buUocki. 



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 ; Oilman 

 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 a 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, 

 legs dusky horn. Length 7-4 ; wing 4-10 ; tail 3-20 ; culmen -7 ; 

 tarsus -9. 



