426 



THE DIVING BIRDS — PYGOPODES. 



distinct tufts about head in breeding-plumage ; neck bright rufous, sides of head ash-gray, 



pileum and nape glossy black. Hub. North America. 

 C. grisegena. 1 Wing, 6.45-7.00 inches (average, 6.63); culmen, 1.50-1.55 (1.53); depth 



of bill through base, .45-.50 (.48); tarsus, 1.98-2.15 (2.06); outer toe, 2.30-2.40 (2.35). 



Colors of 0. Holhdilii. Hob. Paleearctic Region. 

 C. eristatus. 2 Wing, 6.80-7.75 inches (average, 7.10); culmen, 1.75-2.30 (1.96); depth 



1 Colymbus GRISEGENA, Bodd. Red-necked Grebe. 



Colymbus grisegena, Bodd. Tabl. P. E. 1783, 55 (ex PI. Enl. 404, fig. 1). 



Podiceps griseigena, Gray, Genera B. III. 633. 



Colymbus jmrotis, Sparrm. Mus. Carls. 1786, pi. 9. — Gmel. S. N. I. ii. 1788, 592. 



Colymbus subcristatus , Jacq. Beitr. 17S4, 37, pi. 18. 



Podiceps subscristatus, Bechst. Taschb. Vog. Deutsehl. 1803, 351. 



Podiceps rubrieollis, Lath. Ind. Om. II. 1790, 783. 



Colymbus cucullatus et ncevius, Pall. Zoog. E.-A. II. 1S26, 355, 356. 



Podiceps canogularis, Breiim, Vug. Dentsehl. 1831, 958. 



Sp. Char. Exactly like C. Kolbeellii, but much smaller. Wing, 6.45-7.00 inches; culmen, 1.50- 



1.55 ; depth of bill through base, .45-50 ; tarsus, 1.98-2.15 ; outer toe, 2.30-2.40. 



Following is a description of an example of this species in the down : — Downy Young: Head and 



mi]; longitudinally striped with dusky and dull white, the dusky stripes widest (except underneath the 



head), and about six in number ; the crown is divided 

 medially by a narrow stripe of wddte, which, how- 

 ever, does not extend anteriorly to the wddte of the 

 forehead ; the dusky stripe, extending back from the 

 lower eyelid, terminates just behind the ears, but that 

 extending from idiove the eye is continued down the 

 side of the neck, there being between this and its fel- 

 low of the opposite side three dusky stripes down the 

 hack of the neck ; there is a broad but short rictal 

 streak, with three narrower streaks on the chin ; there 

 are also three dusky streaks on the throat — one on 

 each side, and one between. The plumage of the body 

 is duU grayish-fuliginous, lighter beneath, where fading ' 

 into dull grayish white on the abdomen. (No. 57307, 

 Europe.) 



From the corresponding stage of C. eristatus, this 

 may be distinguished most readily by the much darker 

 lower parts, the abdomen only being light colored, and 

 this dull grayish white, while in the young of C. cris- 

 ta! us the entire lower parts, except the sides, are nearly 

 pure white. There are also some differences in the 



markings of the head and neck, the most obvious of which consist in the absence of streaks ou the throat 



in C. eristatus. 



2 Colymbus cristatus. The Crested Grebe. 



Colymbus eristatus, Linn. S. N. ed. 10, I. 1758, 135 ; ed. 12, 1. 1766, 222. 



Put iaps eristatus, Lath. Ind. Orn. II. 1790, 780. — Sw. & Rich. F. B. A. II. 1831, 410.— 



NUTT. Man. II. 1834, 250. — Aud. Orn. Biog. III. 1835, 598, pi. 292 ; Synop. 1839, 356 ; 



B. Am. VII. 1S44, 308, pi. 479.— Lawk, in Band's B. N. Am. 1858, 893. — Baird, Cat. 



N. Am. B. 1S59, no. 703. — Coues, Key, 1872, 336 ; Check List, 1873, no. 609 ; Birds N. 



W. 1874, 729. 

 Colymbus urinatoi; Linn. S. X. ed. 12, I. 1766, 223. 

 Podiceps australis, Gould, P. Z. S. 1844, 135. 

 Podiceps Hectori, Buller, Essay on New Zealand Orn. 1865, 19. 



Hab. Northern part of the Patearctic Region ; also, New Zealand and Australia. No valid North 

 American record! 



Sp. Char. Adult, breeding-plumage : Pileum, including an elongated tuft on each side of the occiput, 

 and outer margin (broadly) of tin' frill, black ; lues, post ocular region, malar region, chin, and upper part of 



C. grisegena. 



