260 BIRDS OF ILLINOIS. 



Podiceps griseigena, var. holbollii COUES, Key, 1872, 337; Check List, 1873 ; No. 610; Birds 



N. W. 1874, 730. 



Podicipes griseigenv holbaelli COUES, 2d Check List, 1882, No. 847. 

 Colymbus holboellii B. B. & B. Water B. N. Am. ii, 1884, 428. A. O. U. Check List, 



1886, No. 2. RIDGW. Man. N. Am. B. 188*. 57. 

 Podiceps griseigena (nee BODD.) LAWB. in Baird's B. N. Am. 1858, 892. BAIBD, Cat. N. Am. 



B. 1859, No. 702. 



Podiceps cooperi LAWK, in Baird's B. N. Am. 1858, 893 (in text). 

 Podiceps subcristatus KITTL. Denkw. ii, 1858,313 (not of JACQ. 1784). 

 Podiceps affinis SALVADOEI. Atti Soc. Ital. viii, 1866, 45. 

 Podiceps cucitllatus TACZ. J. f. O. 1874, 336 (not of PALL. 1826). 

 Podiceps cristatus RIDGW Orn 40th Par. 1877, 642. 

 Podiceps occidentalis TBISTKAM, Ibis, Jan, 1887,98,99; Apr. 1887. 258,259.* 



HAB. North America in general, including Greenland; breeding from Minnesota, 

 Maine, etc., northward, migrating south, in winter, quite across the United States. Eastern 

 Siberia, and south to Japan. 



SP. CHAB. Adult, breeding plumage: Pileum (including lores and depressed occipital 

 tuft) and nape glossy black; rest of the head light ash-gray, bordered above and below by 

 whitish, this most distinct along the upper border, from the eyes backward ; neck (except 

 nape) rich rufous, abruptly delined above against the ashy of the throat, but below gradually 

 merging into the whitish of the b; east Upper parts blackish dusky, the feathers some- 

 times with paler margins ; secondaries chiefly white. Lower parts grayish white, faintly 

 spotted, except on the abdomen, with dusky grayish; sides and flanks nearly uniform 

 grayish. "Bill brownish black, bright yellow at the base; iris c a: mine; tarsi and toes 

 greenish black externally, yellow on the inner side, the edges of the lobes dusky" (AuDU- 

 BON). Winter plumage: Pileum dusky, the occiput without elongated feathers; neck 

 smoky grayish brown, lighter in front, dusky on the nape ; chin, throat, and malar region 

 whitish. Otherwise as in the summer plumage. Young: Pileum and sides of the head 

 dusky, marked with several white stripes one originating at the sides of the forehead, 

 and passing over and behind the eye, another extending from the eye backward over the 

 auriculars, and another dividing the cheeks; a short whitish stripe on each si le of the 

 upper part of the nape; fore part and sides of the neck light fei ruginous. "Culmen black, 

 all the rest of the bill yellow: iris yellow: outer side of tarsus and under web blackish, the 

 rest of the feet bright greenish yellow" (L. M. TUBNEB, M. S.t). Otherwise as in the adult. 



Total length, about 18.00 to 20.00 inches; extent, about 32.00; wing. 7.30-8.10 (average, 7.65) : 

 culmen, 1.65-2.40 (2.02) ; depth of bill at base, .52-.62 (.57) ; tarsus, 2 25-2.75 (2.53) ; outer toe. 2.50- 

 3.05 (2.76). [Seventeen specimens.] 



Holboell's Grebe, the American representative of the much 

 smaller Red-necked Grebe (C. griseigena BODD.) of Europe, is a 

 winter visitant to Illinois. Its summer home is much farther 

 northward, west-central Minnesota being the nearest point where 

 it has been found breeding 1 .! 



Mr. Robert Kennicott found it breeding in the neighborhood 

 of. Fort Yukon, Alaska, and, on the 14th of June, took the eggs 

 from a nest which was floating on the water among the grass 

 on the borders of the lake. It was nearly flat on the top, and 



* C/Bnoow. Ibis. July, 1887, 301, 362, and TBISTBAM, id. Jan. 1888, 148; April, 1889, 227, 228. 



t Fresh colors of No. 70,303. U. S. Nat. Mus., collected at 8t Michael's, Alaska. Sept. 26, 

 1874. by LUCIEM M. TUBNEB. (Length 20.00, extent 32.0, inches.) 



t DB. T. S. BOBEKTS, in The Auk. April, 1890, p. 213. 



