


Table B-13. Washington -- Duck and coot breeding population indices by species and stratum. 
iim me 2A. woe Sitstums ete +5 : = Total | =a Percent change™ 
Western Se > 1968-1977 From From 
Species __ __ Washington _ Potholes _Irrigation Highlands __ Po7s 1977 average __—_—sc average 1977 
Dabblers 
Mallard 10,170 14,640 14,710 3,190 42,710 46,890 54,420 =22 Se) 
Gadwall 5,400 240 510 6,150 6,320 5,850 + 5 site| 
Wigeon 6,690 320 450 7,460 9,950 IL, 138 -33 =20 
Green-winged teal 10 5,120 360 690 6,180 4,690 6 , 300 ee +32 
Blue-winged teal 1,200 135,280 3,980 2,340 22,800 34,680 36 ,440 = Th -58 
Shoveler- 160 4,120 50 210 4,540 3,290 6,320 -28 +38 
Pintail 6,570 760 7,330 3,420 7,060 +4 +86 
Wood duck 3,890 250 240 4,380 11,880 7,020 -38 -63 
Subtotal 15,430 57,820 LS. Sh 8,390 101,550 141,120 134,540 -25 -28 
Divers 
Redhead 9,140 LZ 730 10,270 18,200 14,740 -39 “44 
Canvasback 180 180 560 390 -54 -68 
Scaup 5,980 100 2,000 8,080 8,390 8,110 = a -4 
Ring-necked duck 2,170 2.219 4,380 3,050 3,040 +44 +44 
Goldeneye 130 2,990 2,720 e228 2,880 ib -16 
Buf f lehead 680 680 300 490 +39 +127 
Ruddy duck 9,550 720 2,930 13,200 10,430 12,400 + 6 +27 
Subtotal 27,150 1,950 10,410 39,510 44,150 42,050 = % =k 
American merganser 100 380 480 160 200 +140 +200 
Houded merganser 780 40 820 850 1,589 -48 - 4 
Subtotal 780 100 420 t, 300 1,010 1,780 2} +29 
Total ducks 16,210 84,970 21,960 19,220 142,360 186,280 178,640 -20 -24 
Coot 520 19,330 8,800 6,170 34,820 60,440 37,290 - 6 -42 
Grand total 16,730 104, 300 30,760 23,390 177,180 246,720 215,930 -18 -28 
a a nee ee een ease ge a na a a i a se et pee cs ee, ee eee em nee en eg ee aren a 
4 Rounded to the nearest tenth. 
b Includes cinnamon teal. 

Table B-l4. Washington -- 
Ww 
aterfowl production indices comparing 1978 with 1977 and the 1968-1977 avera 
Br. 
——-—= 




em oe ee ee ee 
= = = 
_-_-— 40 em re ee ee ee ee ee 
ee ee ee ee. 
—= ee 
= ——_— — 
—— 

ee eee ee ee ee ee 
Species 

1978 
i es es 1977 1968-77 Percent change from 
——. = pe VETOBO ___ Average 1977 
Dabblers . i) 
Mallard 
Gadwa ll a ee oie gery Saks 
11,200 5) -16 + 9 
Wigeon | “aa a 12,600 iL) 
Green-winged teal esa sap apne a “14 
s a p 9 l 7 ; 
ame 52, 300 109,400 95,400 i y 
shovels 8,200 6,100 19.800 a es 
15,100 6.00 vi 722 
Wood duck Sau rer oe 
Subtotal ‘ 19,000 +25 
255,900 299,500 355,400 -28 a 
Divers a 
Redhead 
Canvasback ee ae sia 
es 400 900 "700 DA Je 
Rin eee duck ch 3 eee 008 “13 at 
ae 5,700 4.500 5/200 a ae 
Rudd acres ss 500 "500 ra ee 
uddy duc 25,300 +80 +80 
Subtotal ie i rig id aes: 
69, 800 65,700 83,200 -16 ve 
Mergansers 
American 
500 200 
Hooded ne 
Subtotal oa ae 4 3x00 +43 "45 
5,000 3,300 3,500 +43 e 
Total ducks 330,700 368,50 
Canada yoose pats pee 
g 14,500 4 ee me 
Coot 14,500 12,000 +21 
50,800 75,700 57,200 -1l 33 
Grand total 
an a 396 , 000 458,700 511,300 -23 14 


