548 CLASS AVES. 



The Horned Grehe. Col. Cornutus^ Enl. 404, 2. 

 Col. ObscuruSj Enl. 942. Col. CaspicuSy Gm. 

 Vieill. Gal. 281, Edw. 145. 



Like the last in form, but the collar of the adult is 

 black ; the crest, with the fore part of the neck, are 

 red. Its size is, moreover, much less. 



C. Obscurics, and C Caspicus is the young ; and, 

 according to M. Temminck, C. Nigricans Scop., and 

 C. Aiiritus, B. Lath., are varieties. P. Arcticus, 

 Boise. 1823, appears to be a variety. 



JRed-necked Grebe, Lath. CoL Subcristatus, and 

 when young, Parotis and Rubricollis, Enl. 931, 

 Lath. Sup. I. 118, Naum. 70, f 107, 



Has also the fore part of the neck red, but the 

 crests of the adults are small and black, and the 

 collar is very short and grey. Its size is interme- 

 diate between the above two. 



When young, according to Temminck, C. Parotis, 

 Sparrra. Mus. Charl. t. 9, and C. Vulgaris, Sco- 

 poli. 



Col Minor, Gm. Enl. 905. 



As big as a quail ; has neither crest nor collar. Its 

 plumage is brown, with more or less red except at 

 the breast and belly, where it is silvery-grey. The 

 young have the throat white. 



PI. Enl. 901. Adult Coli/mbtis Hebridus, Gmel. 

 Penn. Br. Zool. t. 79, n. 227, found in Europe, North 



