PYGOPODES PODIC1P1DAE PODICEPS AUR1TUS. 489 



PODICEPS CORNUTUS, Lath. 

 Horned Grebe. 



Podiccps cornutus, LATH., Ind. Orn., ii, 1790, 783. LAWK., Birds N. A., 1858, 895. 

 COOP. & SUCKL., P. R. R. Rep., xii, pt. ii, 1800, 281. COUES, Proc. Acad. 

 Nat, Sci. Phila., 18C6, 101 (Arizona). Id,, Key N. A. Birds, 1872, 337. 

 SNOW, Birds Kau., 1872, 16. YARROW & HENSHAW, Rep. Orn. Specs., 1872, 

 Wheeler's Expert., 1874, 33. COUES, Birds Northwest, 1874, 731. 



This grebe was present on Rush Lake, Utah, in September, but not 

 apparently very numerous. Its distribution is very general ; and, though 

 probably the greater number retire farther north in summer to find breeding 

 places, I think more or less remain at this season in Utah. 



PODICEPS AURITUS (Linn.), var. CALIFORNICUS, (Heerm). 

 Eared Grebe. 



Porliceps californicm, HEERM., Proc. Acad. Nat. Sci. Phila., 1854, 179. Id., P. R. R. 

 Rep., x, 1859, 76, pL 8 (young). NEWB., P. R. R. Rep., vi, 1857, 110. 

 LAWR., Birds N. A., 1858, 896. Coop. & SUCKL., P. R. R. Rep., xii, pt. ii, 

 1860, 282. HAYD., Trans. Am. Phil. Soc., 1802, 176. STEV., U. S. Geol. 

 Surv. Terr., 1870, 466 (North Platte). 



Podiccps (Proctopus) californicus, COUES, Proc. Acad. Nat. Sci. Phila., 1866, 100 (Ari- 

 zona). 



PoiUceps auritutt var. calif or nicus, COUES, Key N. A. Birds, 1872, 337. Id., Am. Nat., 

 vii, 1S73, 745 (Dakota). HENSHAW, Am. Nat., viii, 1874, 243. SNOW, 

 Am. Nat,, 757 (Kansas). ALLEN, Proc. Bost. Soc. Nat. Hist., June, 1874, 

 38. COUES, Birds Northwest, 1874, 733. 



The Eared Grebe was found quite numerous in the vicinity of Denver 

 in May, as late as the 15th. They were seen occasionally in the river, but 

 resorted mostly to certain small ponds, which were not, however, at all 

 adapted to meet the necessities of a breeding ground, and I am inclined to 

 think that those seen here were still migrating. Later, June 23, the species 

 was found breeding in the alkali ponds of Southern Colorado, mentioned 

 heretofore. I noticed the birds in several of the ponds, and presume in 

 each case a small colony had established themselves therein. In the 

 only instance I was able to inspect their domestic arrangement, a com- 

 munity of perhaps a dozen pairs had selected a bed of reeds in the middle 

 of the pond, isolated from the land by a considerable interval of water. 



