692 



SYSTEMATIC SYNOPSIS. —LAMELLIB0STBES—AN8EBES. 



70S. A. o. fulvi'gula. (Lat. /mZws, reddish; p^Za, tliroat.) Florida Ddsky DucK. Similar; 



lighter-colored; throat plain pale brownish; bill olive, with black nail and base of commissure 



A local race, resident in Florida. 

 385. DA'FILA. (A non-sense word.) Pin-tail Ducks. Tail (in adnlt $) ng-rrow, cuueate, 



when fuUy developed nearly as long as wing, the 2 central feathers long-exserted, linear-acute : 



in 9 and young the tail merely 



tapering, with acute feathers ; tail- 

 feathers 16, including the long mid- 

 dle pair. Bill shorter than head, 



longer than tarsus, nearly parallel 



sided, widening a little to the end, 



the nail smaU, the narrow nostrils 



high up in basal third of biU. 



Feathers of cheeks sweeping in 



strongly convex outline along side 



of upper mandible, beyond those 



on side of lower mandible. Wing 



acute, the 1st and 2d primaries 



subequal and longest, rest rapidly 



graduated. Neck unusuaUy long Fig. 479. - Head of Z)<y!!a, ?, nat. size. (Ad nat. del. E. 0.) 



and slender, and form less "stocky" than that of most ducks. Sexes and young very unlike 

 in color, even to the wing-markings, as well as in shape of tail. BiU and feet dark. Under 

 parts white or whitieh. Speculum of $ framed in buff, white, and black. 

 HO. D. acu'ta. (Lat. ocMfei, acute, as the tail is. Figs. 479, 480.) Pin-tail Duck. Spkig-tail. 



Adult $ : Bm black, 

 with grayish - blue 

 edge of upper man- 

 dible ; feet grayish- 

 blue ; claws black j 

 iris brown. Head and 

 neck above rich dark, 

 brown, glossed with 

 green and purple ; 

 side of neck with a 

 long white stripe run- 

 ning up from the 

 white under parts : 

 back of neck with ' a 

 black stripe passing 

 below into the gray 

 color of the back; 

 the lower fore-neck, 

 breast, and under 

 parts usually, white, 

 the sides finely waved 



Fig. 480 — Pin-tail Duck, 9 ,}. (From Lewis.) 



with black, the crissum black, white-bordered. Fore back finely waved with narrow bars of 

 black and white or frhitish ; the scapulars and long tertiaries firmly striped lengthwise with 

 velvety-black and sUvery-gray. Lesser wing-coverts plain gray ; greater tipped with reddish 

 buff, framing the speculum anteriorly ; this is of coppery- or purplish-violet iridescence, framed 

 posterif>-ly with black sub-tips and white tips of the secondaries, internally with silvery and 



