456 Birds of Colorado 



vipper mandible, legs pale yellow-brown. Length 5-25 ; wing 2-80 ; 

 tail 20 ; cuknen -40 ; tarsus -70. 



In autumn the male is very different, the black cap is entirely absent, 

 and the upper-parts are olive-green, sUghtly streaked with black in 

 the middle of the back, the tips of the coverts tinged with oUve ; below 

 paler ohve-green, becoming white on the under tail-coverts. 



The female is somewhat like the fall male, but is more distinctly 

 streaked on the crown and back, while below it is paler, often white 

 on the centre of the abdomen, and streaked laterally with dusky. 



Distribution. — Breeding far north from Alaska and Labrador to 

 Michigan and northern New England, in winter southwards through 

 the West Indies to northern South America as far as northern Brazil 

 and Ecuador. 



The Blackpoll cannot be considered anything but a straggler on 

 migration in Colorado. A ntunber were seen and one female obtained 

 near Denver, May 17th, 1873, by Henshaw ; Henderson saw one at 

 Boulder on May 7th, 1905, at very close range ; and Hersey obtained 

 one May 6th, 1908, at Barr ; Allen & Brewster saw two and obtained 

 one near Colorado Springs on I\Iay 8th and 9th, 1882 ; and Cooke 

 notes it in his migration tables at Fort Lyon, May 8th, and Loveland 

 May 12th ; there is no example in the Aiken collection. 



Minot states " local summer resident at Seven Lakes," on the southern 

 slopes of Pikes Peak. This breeding record has never been confirmed 

 and is a long distance from Mackinac Isle, Michigan or Manitoba, 

 the nearest recorded portions of the breeding range, and even Manitoba 

 seems doubtful. It will be perhaps safest to neglect the Minot record 

 until further, verified, and consider the Blackpoll a rare straggler on 

 migration, and not a breeding resident. 



Grace's Warbler. Dendroica gracice. 



A.O.U. Checklist no 664— Colorado Records— Drew 81, p. 142 ; 

 Morrison 88, p. 72 ; Osburn 93, p. 212 ; Cooke 97, p. 115 ; 04, p. 86 ; 

 Chapman 07, p. 185 ; Cary 09, p. 183. 



Description. — Adult Male — Above slaty-grey with a few black stripes 

 on the crown and the middle of the back ; wings and tail dusky, the 

 former with white tips to the coverts, forming a double wing-bar ; 

 the latter largely white on the inner webs of the outer feathers ; a 

 stripe from the base of the bill to above the eye and the throat and 

 chest bright yellow ; ear-coverts grey, with a white patch above them, 

 rest of the under-parts white, streaked with black on either side ; 

 iris brown ; bill blackish, legs dusky brown. Length 4-50 ; wing 2-80 ; 

 tail 2-20 ; cubnen -4 ; tarsus -7. 



The female resembles the male, but is duller in colour, the grey of 

 the back tinged with brown, and the black streaks on the back and 



