100 



Leucosticte tephrocotis ALLEN, Am. Nat., vi, No. 5, May, 1872. lb., 

 Bull. Mus. Comp. Zool., vol. iii, No. 6, p. 177. 



CH. Similar to var. tephrocotis, but without any gray on the head, 

 the red of the abdomen and wing-coverts bright carmine, instead of 

 dilute rose color, and the bill deep black, instead of mostly yellow. 

 Prevailing color umber brown (more earthy than in tephrocotis} be- 

 coming darker on the head, and approaching to black on the forehead. 

 Nasal tufts white. Wings and tail dusky, the secondaries and prima- 

 ries skirted with paler; lesser and middle wing-coverts, and upper and 

 lower tail-coverts, broadly tipped with rosy carmine, producing nearly 

 uniform patches. Abdominal region with the feathers broadly tipped 

 with bright carmine or intense crimson, this covering, nearly uni- 

 formly, the whole surface. Bill and feet deep black. 



Male (.original No. 963, Mt. Lincoln, Colorado Territory, July 25, 

 1871; J. A. Allen). Wing, 4-20; tail, 3-10; culmen, -45: tarsus, -70; 

 middle toe, '60. 



Female (No. 960, same locality, etc.). Wing, 4-00 ; tail, 3-00. Colors 

 paler and duller, with the red almost obsolete. 



Hob. Mt. Lincoln, Colorado. Breeding above the timber line 

 (Allen). 



70. CENTKONYX BAIRDII (Aud.) == C. OCHROCEPHALUS 

 Aiken. Mr. Aiken has collected a second specimen of this bird at the 

 same locality where the first one was procured, in El Paso Co. This 

 one, collected May 6, 1873, being in spring plumage is so decidedly 

 intermediate between Audubon's original type of C. Bairdii (in worn, 

 faded midsummer dress) and the autumnal specimen which Mr. Aiken 

 characterized as C. ochrocephalus (Am. Nat., vol. vii, No. 4, p. 236) that 

 there is every probability of all three specimens being the same spe- 

 cies in different seasonal stages. Mr. Aiken is not to blame for de- 

 scribing his first specimen as a new species, for he, not having an 

 opportunity to compare it with the original C. Bairdii, trusted the 

 identification of the specimen to me, and at my suggestion described 

 it as new, the great difference between the two specimens warranting, 

 in my opinion at the time, a specific separation. 



The last specimen collected by Mr. Aiken is in my collection (No. 

 2,141). Its measurements are as follows : wing, 2-80 ; tail, 2-10 ; cul- 

 men, -45; tarsus, -80; middle toe, -60. "Length, 5-62; extent, 9-04. 

 Legs and lower mandible, flesh color; upper mandible, horn color, the 

 tip lighter; toes and claws dusky." No. 1,266, Aiken's Coll., El Paso 

 Co., Colorado, May 6, 1873. 



Dr. Elliott Coues, the naturalist of the Northern Boundary Survey, 

 in charge of Commissioner A. Campbell, has taken during the past 

 summer, but since Mr. Aiken's captures, about seventy specimens of 





