25. 
25. 
27. 
27. 
29. 
29. 
31. 
31. 
33. 
33. 
35. 
35. 
37. 
37. 
37. 
25 
24. Male with an orange ring around neck; speculum brownish 
gray female chiefly brown: +)... 20200: Ring-necked Duck. 
24. Male with white speculum; female with white face... ......(25) 
Length 18 to 20 inches; wing over 8} inches long... ......Scaup Duck. 
Length 15 to 164inches wing under 8} inches long. . Lesser Scaup Duck. 
26. Bill about half as wide as the length of the culmen . . Red-head. 
2b. Bill about halfas wide as long... oe yus4-3. Ja. Canvas-back. 
Bill decidedly broadened toward tip, being nearly twice as wide here 
CEASE Tha | SIG i A ara ea SR a Ga OV gD ert PEO Shoveller. 
Bill but little if any widened toward tip. . a atone alae . (28) 
28. Head conspicuously crested; crown hich with le a iees 
PRIS PURI UV INPUC es costs 4 cycls weoeis solpaiig Shaytigigit miata ate x Wood Duck. 
28. sad not crested. aie aI Dee . (29) 
Central tail feathers over 7 aches cont (male) « or bin aeed nar ‘Ghaen: 
pointed (female); neck unusually long... ................ Pintail. 
Tail and neck not especially lengthened. hea. eee tis ene ee (30) 
30. Bull decidedly shorter than the head; belly white.. ........(31) 
30. Bill about as long as head, or longer... .. ae . (32) 
Head and throat mainly buffy, finely barred with lane? UBaisipate: 
Head and throat with much brown or reddish brown BarapeauWidecon: 
a2. Wine less than Sh mches lone cs.nal. caw aes seca bee epee ee (33) 
32; iors wate angels racer pea ee aa ested . (35) 
Wing-coverts leaden gray without blue... ... eeeeeeeed Teal. 
Ano Goyentsisleyalliies Say qretnasceeuat a. tac nslaet oieys Rhaeeet eel they eu ahs (34) 
34. Culmen usually more than 13 inches; head, neck and lower 
parts uniform rich cinnamon brown (male); female slightly 
ruddier than same sex of Blue-winged... ..... Cinnamon Teal. 
34. Culmen generally less than 12 inches; head and neck dull 
plumbeous, with a large crescent-shaped white patch in front of 
eye; lower part pale chestnut, spotted with black (male); 
head and neck streaked with dusky... ....... er ee Teal. 
mpeculum: white or. grayish whites). <2 f2%',-) Se. be oe ee ¢ adwall. 
Speculum a rich purple with a black border. .............. . (36) 
36. Speculum bordered at both ends with narrow AWE ad atic 
eB aa altro cent ie .Mallard. 
36. Speculum aati Heike a Peck Periee ion ain any inns (37) 
Crown without paler margins; throat usually without markings; legs 
olivaceous brown; bill greenish black, dusky olive, or olive-green. 
Mace a aorta asst teeth Che Rar hie NST ARTES Mice Ne con Acahe tees . Black Duck. 
Crown cee with buff or gray ; throat eae legs red; bill yellow 
ia ee ALE eon SR pee Me cod Ir SE re ara aedticeead Black Duck. 
Similar to the last but lighter colored and with small black spot at 
lower edge of upper mandible at base. _. ...:......... Mottled Duck. 
129, Merganser americanus (Cassin) —-AMERICAN MERGANSER. 
A regular, and in some localities, common, migrant; early in spring 
and late in fall. Breeds from Minnesota northward. 
