COLTMBID^. — PODICIPEDIDjE. 61 



358. Black-tiieoated Divee. Cohjmlms arcticus, Linnaeus. Breeds 

 locally in N. of Scotland, migrating southward in winter. 



Adult : spring. Chin and throat hlack, with a purple gloss, divided by 

 a patcli of white with black lines ; iris red. 



Winter. Like last, but smaller. Length 25 inches. 



359. Red-theoated Divee. Cohjmhws septentrionalis, Linnaeus. 

 Breeds in N. of Scotland and Ii-eland. 



Adult : spriiuj. Throat grey, with lower part chestnut-red. 

 Winter. Above ashy grey, speckled and spotted with white, most so 

 in the young ; underparts white. Length 21-23 inches. 



PODICIPEDID^. Feet with lobes ; no true tail. 



3G0. Geeat Crested Gteebe. Podicipes cristatus (Linnaeus). 

 E-esident. 



Male : summer. Crown and tufts black ; tippet round face chestnut, 

 with black edges. 



Female. Eather smaller ; crest and tippet not so much developed. 



In ivinter these ornaments are scarcely present in the adult male, less 

 so in the female, and absent in the young ; all have white eye-stripe. 

 Length 20-24 inches. 



361. Eed-necked Geebe. Podicipes griseigena (Boddaert). Autumn 

 to spring. 



In summer. Cro\^'n, nape, back of neck black; chin and throat grey; 

 neck in front chestnut-red; no tippet ; bill black, base of bill yellow. 

 In ivinter. Neck in front grey; no eye-stripe. Length 16| inches. 



362. Lessee Ceested or Slavonian Geebe. Podicipes auritus 

 (Linnaeus). Autumn to spring ; not known to breed in British 

 Islands. 



Bill straight. 



In Slimmer. With tuft of lengthened chestnut feathers on each side 

 of head from bill to nape ; crown, forehead, chin, and ruff or tippet 

 black ; neck and flanks chestnut. 



In ivinter. As in last. Length 13 inches. 



363. Black-necked or Eaeed Geebe. Podicipes nigricoUis, C. L. 

 Brehm. Autumn to spring. 



Bill slightly curved upwards ; inner four primaries rvhite throughout. 



In summer. Head and necJr black, with a stripe from eye to nape of 

 lengthened golden reddish feathers. 



In winter. Eesembles last in plumage, except the white on primaries. 

 Length 12 inches. 



