13O DUCKS. 



with coarser black and white transverse bandings behind; 

 white crescent in front of wing bordered behind by one of 

 black; speculum, green and bronze bordered behind with 

 white; iris, red; bill, pinkish; feet, brown, fig. 150. Female 

 and young, duller with the head plain slaty-brown with 

 throat, line at base of bill and space around eye, white ; young 

 have the breast streaked. Temperate N. A. breeding through- 

 out its range ; migrates south in Oct. to winter in the Gulf 

 States ; comes north in April. Breeds in April in Fla., in May 

 further north; nests, placed in holes of trees: eggs, 6 to 10, 

 pale brownish. Frequents wooded streams and small ponds, 

 often hiding in thickets, rises suddenly and flies swiftly away 

 usually along the course of the stream. Note when breeding, 

 given by both sexes, a clear, long-drawn, plaintive cry, often 

 repeated. 



C. SEA DUCKS. Fuligulidae. 



Sea-inhabiting ducks with the bill not often expanded at 

 tip but somewhat so in the middle in a few genera, 

 a. Pochards. Netta. 



Head, conspicuously crested; bill, not expanded; specu- 

 lum, present. 



1. RUFOUS-CRESTED DUCK, N. RUFINA. 21.00; bill, 

 2.00; speculum, white; head and neck, purplish-red; lower 

 neck, stripe along hind neck, lower parts, and rump, black- 

 ish; back, brown; large patch on flanks, white; bill and feet, 

 bright red. Female, brownish throughout; speculum, gray 

 bordered behind with a band of brown ; crest, smaller. East- 

 ern hemisphere; accidental in eastern U. S. All dive with 

 ease. 



b. Bay Ducks, Aythya. 



Differ from a in being without crest. 



1. REDHEAD, A. AMERICANA. 20.00; bill, 2.00, low at 

 base and not projected backward on forehead; speculum, 

 bluish with the upper feathers black margined; head, and 



