BIRDS — CUCILIDAE — COCCYGUS ERYTHROPHTHALMUS. 



77 



portions of the quills. The bill is considerably stouter tlmii in C. erythrophthalmus. There 



is no difference between the sexes, except that of size. It goes as far north in summer as 



Labrador, according to Mr. Audubon, and stragglers have been occasionally taken in Europe. 



AltliiHigh Townsend says it occurs west of the Rocky mountains, it has not been collected by 



any of the recent expeditions. 



List of specimens . 



COCCYGUS ERYTHROPHTHALMUS, Bon. 



Black-billed Cnckoo. 



Ciiculus erytlirophlhalmus, Wilson, Am. Orn. IV, 1811, 16 ; pi. x.\viii. 



Coccyzxis erytltrophlhalmus, Bon. Obs. Wils. 1825, 48. — Ib. Consp. 1850, IV. — Aro. Orn. Biog. I. 1832, 170: 



V. 523, pi. 32.— Ib. Birds America, IV, 1842, 300 ; pi. 276, 

 Eryihrophrys erylhrophlhalmus, Bon. List, 1838. 

 Coccyzus dominictu (Lath.) Nctt. Man. I, 1832, 556, (not of Latham, which belongs rather to C. americanus, on 



account of the red qnills and white edge of outer tail feather.) 



Sp. Ch. — Bill entirely black. Upper parts generally of a metallic greenish olive, ashy towards the base of the bill • 

 beneath pure white, with a brownish yellow tinge on the throat. Inner webs of the quills tinged with cinnamon. Under 

 surface of all the tail feathers hoary ash gray. All, except the central on either side, suffused with darker to the short bluish- 

 white, and not well defined tip. A naked, red skin round the eye. Length about 12 inches ; wing, 5 ; tail, 6.50. 



Hob. — United States to the Missouri plains. 



This species differs from the C. americanus in the black bill, and the absence of black on the tail 

 feathers, the white tips of which are much shorter and less abruptly defined. One specimen 

 (5253) from the Upper Missouri has a much stronger tinge of yellowish cinnamon on the inner 

 webs of the quills than the others. The sexes are quite similar. 



List of specimens. 



Locality. 



I When collected. 



Carlisle, Pa May 18, 1841 



do May 13,1846 



Liehlning lake, M. T 



■Moreau river, Nebraska Territory, 



Fort Lookout... . ....do 



50 miles above mouth of Platte... 



do do I 



Fremont, on Platte July 1,1857 



Loup Fork August 5, 1857 



June 4, 1853 

 July 3, 1856 

 May 16, 1856 



Whence obtained. Collected by- 



Length. 



S. F.Baird 



do 



Gov. Stevens 



Lt. Warren Dr. Hayden. 



.do . 

 .do . 

 .do . 

 .do . 

 .do . 



.do . 

 .do . 

 .do. 

 .do . 

 .do . 



13. 



14.50 



10.75 



12. 



11.00 



12.00 



12.35 



12.00 



Extent. 



16.00 

 16.50 

 14.26 

 16.25 

 15.50 

 16.00 

 16.25 

 16.35 



Wing. 



Remarks. 



No label.. 



5 

 5 

 5 

 5 

 5 

 5 

 5 

 6.00 Iris, yellow 



Eyes, brown . 



do 



do 



do 



do 



