312 Birds of Colorado 



C. Pale yellow or grey below. 



a. Smaller ; wing under 3 ; bill distinctly decurved. 



I. spurius, ? et juv.,p. 312. 



b. Larger; wing well over 3-0; culntien straight. 



a^ Rump yellowish, contrasting with the brown back. 



I. galbula, ? et juv., p. 312. 

 b^ Rump greyish-brown Uke the back. 



I. bullocki, ? et juv., p. 313. 



Orchard Oriole. Icterus spurius. 



A.O.U. Checklist no 506— Colorado Records— Allen 72, pp. 150, 158 ; 

 Drew 85, p. 16 ; Morrison 89, p. 148 ; Cooke 97, pp. 94, 164 ; H. G. 

 Smith 08, p. 186. 



Description. — Head, neck, chest, upper-back, tail and wings black, 

 the latter with whitish edgings to the quills and greater coverts ; rump, 

 upper tail-coverts, middle and lesser wing-coverts and under-parts 

 from the chest, rich chestnut-brown ; iris brown, bill black, pale at 

 the base of the lower mandible ; legs dark horn. Length 6-10 ; wing 

 3-08 ; tail 2-65 ; culmen -65 ; tarsus -75. 



The female is dull greenish above, dusky in the centre of the back 

 and on the wings, brightest on the upper tail-coverts ; below greenish- 

 yellow. 



The young male resembles the female, but is brighter yellow below 

 and has the lores and throat black. 



Distribution. — Breeding throughout eastern North America from 

 southern Ontario to Texas ; in winter south to Cuba and through 

 Mexico to Colombia. 



The Orchard Oriole is not uncommon throughout Kansas ; there is 

 an example in the Aiken collection from Gem in Thomas co., about 

 sixty miles from the Colorado border, but it is certainly very rare 

 within our limits. Aiken reports (Cooke, 97) that he saw three examples 

 on Beaver Creek in Fremont co. in May, 1875. Recently H. G. Smith 

 has found it quite common and nesting in early Jime at Boyes ranch 

 on Dry Willow Creek, about twelve miles south-east of Wray. 



Baltimore Oriole. Icterus galbula. 



A.O.U. Checklist no 507 — Colorado Records — Allen 72, p. 150 

 Baird, Brewer & Ridgway 74 vol. iii., p. 518 ; Drew 85, p. 16 

 Morrison 89, p. 148 ; Cooke 97, pp. 95, 164 ; Henderson 03, p. 236 

 05, p. 421 ; 09, p. 234 ; H. G. Smith 08, p. 187. 



Description. — Head, neck, chest and upper-back wholly, wings and 

 tail chiefly, black ; rump and upper tail-coverts, lesser and middle 

 wing-coverts and rest of the vmder-parts of the body rich orange- 

 yellow ; primary-coverts strongly tipped, remiges slightly edged 



