6 Birds of Colorado 



Homed Grebe. Colymhus auritus. 



A.O.U. Checklist no 3 — Colorado Records — Cooke 97, pp. 49, 155 ; 

 Hersey & Rockwell 09, p. 101. 



Description — Adult — Crown, sides of the face and chin, together 

 with ruff, glossy black ; a yellowish stripe deepening to chestnut at 

 the end, runs from the base of the bill through the ej^e and ends in 

 a crest at the side of the nape ; rest of the upper-surface, including 

 the back of the neck, dusky black ; the secondaries white ; neck and 

 sides rich rufous ; rest of under-parts siUcy white ; iris carmine with 

 a v/hite ring, bill dusky, tipped with yellow, feet dusky and yellow. 

 Length 15-0; wing 5*5; culmen "90; tarsus 1*65. 



Adults in winter, and young birds, have very slight indications of 

 the crests and ruff ; the crown, back of the neck and back are dusky 

 black ; the lower-parts white, tinged with grey on the neck and pale 

 dusky on the sides. 



Distribution. — Throughout the northern hemisphere. In America, 

 breeding chiefly north of the United States boundary, from Alaska 

 to New Brunswick ; south in winter throughout the greater part of 

 the States. 



This is another Grebe whose status as a Colorado bii'd is rather 

 doubtfuL Captain Thorne states that according to his journal he 

 killed a specimen near Fort Lyon, on the Arkansas River, October 

 8th, 1887, but he does not appear to have preserved it. ]Mr. E. L. 

 Berthoud informed Cooke that he had seen two Horned Grebes which 

 had been killed on some lakes north-east of Golden ; and Hersey (09) 

 saw two near Barr May 5th, 1906. It will probably be found to be 

 a rare autumn migrant, Uke the two previous species. 



American Eared Grebe. 

 Colymhus nigricollis calif ornicus. 



A.O.U. CheckUst no 4 — Colorado Records — Henshaw 74, p. 243 ; 

 75, p. 489 ; Scott 79, p. 96 ; Allen & Brewster 83, p. 198 ; Goss 84, p. 18 ; 

 Morrison 89, p.l46 ; W. G. Smith 89, p. 138 ; 90, p. 141 ; Osburn 90, 

 p. 68; Cooke 97, pp. 19, 49, 191 ; Dille 03, p. 74 ; Warren 08, p. 20; 

 09, p. 13 ; Rockwell 08, p. 156 ; 10, p. 188 ; Henderson 09, p. 224. 



Description. — Adult — Crown, which is crested, neck all round, back, 

 chin and throat, black ; auricular tufts golden to tawny, well developed 

 and conspicuous ; primaries brown ; secondaries mostly white ; below 

 from the breast silky white, the sides tawny-rufous and a little mottled 

 with black ; iris carmine, bill black, feet dark ohvaceous to blackish. 

 Length 12; wing 5*0; culmen 1"0; tarsus 1-70. 



