BIJRDS — ^CUCULIDAE — COCCYGUS ERITHEOPHTHALMUS. 



77 



portions of the quills. The bill is considerably stouter than in 0. erythrophthalmus. There 



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



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



Although Townsend says it occurs west of the Eocky mountains, it has not been collected by 



any of the recent expeditions. 



List of specimens. 



COCCTGUS ERYTHROPHTHALMUS, Bon. 



Black-billed Cuckoo. 



Cuculus erythrophthttlmus, Wilson, Am. Orn. IV, 1811, 16 ; pi. xxviii. 



Coccyzus erythrophthalmus, BoN..Obs. Wils. 1825, 48.— Ib. Consp. 1850, IV.— Atro. Orn. Biog. I. 1839, 170: 



V. 593, pi. 39.— Ib. Birds America, IV, ]842, 300 ; pi. 276. 

 Erythrophrys erythrophthalmus, Bon. List, 1838. 

 Coccyzus dominicus (Lath.) Ndtt. Man. I, 1839, 556, (not of Latham, which belongs rather to C. americanua, 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, sufSused with darker to the short, bluish- 

 white, and not well defined tip. A naked, red skin round the eye. Length about 19 inches ; wing, 5 ; tail, 6.50. 



Hub. — United States to the Missouri plains. 



This species differs from the G. americanws 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. 



Catsl. 

 No. 



391 

 2660 

 6149 

 5233 

 5232 

 8980 

 8979 

 8981 



Locality. 



Carlisle, Fa 



do 



Lightning lake, M. I.., 



Moreau river, Nebraska Territory, 



Fort Lookout do 



SO miles above mouth of Platte. .. 



do do 



Fremont, on Platte 



Loup Fork 



When collected, 



May 18, 1841 



May 13, 1846 



June 4, 1853 



July 3, 1866 



May 16, 1856 



July 1, 1857 

 Augusts, 1857 



Whence obtained. 



S.F. Baird... 



, do 



Gov, Stevens . 

 Lt. Warren... 



, do 



do 



do 



do 



do 



Collected by- 



Length. 



Dr. Hayden. 



do 



do 



do 



, do 



do 



12. 



14.50 



10.75 



12. 



11.00 



12.00 



12.35 



12.00 



16.00 

 16.50 

 14.26 

 16.25 

 15.50 

 16.00 

 16.25 

 16.25 



Wing. 



5.50 

 5.50 

 5.25 

 5.50 

 5.50 

 5.S0 

 5.75 

 6.00 



Remarks. 



