224 ANATID^. 



3. Fnligula collaris. 



Anas collaris, Donov. Brit. Birds^ vi. pi. 147 '. 



Fuliffula collaris, Scl. & Salv. Ibis, 1860, p. 277"; P. Z. S. 1876, p. 400'; Salvad. Cat. Birds Brit. 



Mus. xxvii. p. 370 *. 

 Fulix collaris, Lawr. Mem. Bost. Soc. Nat. Hist. ii. p. 315 ' ; Baird, Brewer, & Ridgw. Water- 



Birds N. Amer. ii. p. 25 \ 

 Aythya collaris, Ferrari-Perez, Pr. U. S. Nat. Mus. ix. p. 174^; Stone, Pr. Acad. Philad. 1890, 



p. 217 '; A. O. U. Check-l. N. Amer. Birds, 2iMi ed. p. 53 '. 

 Fuligula affinis, Scl. (nee Eyton), P. Z. S. 1859, p. 369 '°. 

 Fuligula rufitorques, Scl. P. Z. S. 1862, p. 20 ". 



Supra nigra, capite colloque purpureo lavatis, dorso viridi paullulain nitente ; tectricibus alarum et remigibus 

 grisescenti-brunneis, primariis intimis fusco terminatis ; secundariis extimis griseis, extus albo terminatis, 

 fascia subterminali fusca ; secundariis intimis et scapularibus longioribus nigris, paullolam viridi niten- 

 tibus ; tectricibus majoribus nigricantibus ; cauda fusoescenti-nigra ; gutture efc praepectore nigris, torque 

 collari castaneo ; corpore reliquo subtus albo, abdomine et corporis Iat«ribu8 vix fusco vermiculatis ; 

 subcaudalibus nigris ; subalaribus cinerascentibus, albo marginatis ; axillaribus albis : rostro plumbeo, 

 fascia basali et altera latiore subterminali cyanescenti-albis, apice uigro ; pedibus pallide schistaceis. 

 Long, tota circa 17'0, alffi 7'8, caudae 3-0, culm. 1-9, tarsi 1-45. (Descr. maris adulti ex Corpus Christi, 

 Texas. Mus. nostr.) 



5 feminee F, marilce similis, sed pileo et coUo brunnescentioribus, minims rufescentibus j alls ut in man colo- 

 ratis, speculo alari griseo : rostri fasciis angustioribus et minus distinctis ; pedibus schistaceis. Long, tota 

 circa 17-0, alse 7-2, caudae 2-5, culm. 1-8, tarsi 1-3. (Descr. feminae adultae ex Duenas. Mus. nostr.) 



Hah. North Amekica, breeding far north, migrating south in winter •* ^. — Mexico, 

 Chihuahua, Boca Grande, Janos River [Br. Kennerly^), Mazatlan {Grayson^ ^), 

 Eio de Coahuayana {Xantus % Lake Patzcuaro {Baker ^), Jalapa {De Oca 1°), 

 Lake Chapulco, Puebla {Ferrari-Perez ''), Oaxaca {Boucard ^i) ; Guatemala, Cohan, 

 Lake of Duenas {0. S.^^'^). — West Indies*. 



The Eing-necked Scaup is distinguished from the two preceding species by the 

 colour of the speculum, which is bluish-grey, narrowly tipped with white, instead of 

 white, tipped with black; the sides of the body, likewise, are greyish-white, with 

 strongly marked blackish vermiculations. The white chin-spot and the rufous collar 

 on the neck are further distinguishing characteristics. 



This species breeds throughout the northern parts of North America from about 

 lat. 44°. It migrates south in winter, and is then found on inland waters, and more 

 sparingly on the coasts. According to Grayson, F. collaris occurs in Western Mexico, 

 and he obtained specimens at Mazatlan 5. It was found by Dr. Kennerly, during the 

 Mexican Boundary Survey, at Boca Grande in Chihuahua, and also on the Janos River, 

 where the bird was seen in large flocks in April «. In Guatemala we procured 

 specimens on the Cohan River in Vera Paz in November, when the species was noticed 

 in considerable numbers ^ 3 4 



The nest is made of dry grasses, slightly lined with down. The eggs are described 

 as being of a greyish-ivory-white, a buff'y tinge sometimes replacing the grey «. 



