32 
Table B-10. Minnesota waterfowl breeding population estimates by species and 
stratum in 1978.° 
= ee ee ee Se ee ee 
“Er > mee ee ee a ee + ee ee _ 
—-— = Se ee eee =, 
me ee ne ne i et ee wee ee ee ee 
en ee ee 
Species I Il {il IV All 
Dabbler 
Mallard 11,789 i ae Pee 29216 13,993 70,145 
Black duck 69 143 203 
Gadwall 60) 235 174 95 564 
Wigeon 120 352 174 619 ae, 
Green-winged teal 174 
Rlue-winged teal 4,842 TSS 16,134 2,189 30, 680 
Shoveler yA Wa 822 2,016 95 4,315 
Pintail 602 352 1,919 476 3,349 
Wood duck 962 470 19221 256.33 
Subtotal 19.217 24 ,893 51,628 17,610 113,348 
Divers 
Redhead 451 352 3,952 190 4,045 
Canvasback 1,263 a7. 117 
Ring-necked duck 692 1,409 ere? 333 3,655 
Goldeneye 120 Lik ss Be 
Buf f lehead 872 
Ruddy duck 481 352 436 b i269 
Merz anser 117 LL 
Scaup 24.2 00 1,879 10,640 1,047 15:82 2 
Subtotal 5,263 4,226 167221 3,283 28,993 
Total Ducks 24,480 29 1N9 67,849 20,893 142,341 
Other 
Coot 2,887 3,458 26,512 666 33,823 
Canada geese 782 470 5,843 571 7,666 
ee ee ee ee 
_——_— ee = 
———— ee ee 

ee ee = 
4rstimates are expanded for coverage but not for visibility. 

33 
Table B-ll. Estimated number of breeding ducks in Minnesota during the years 
1977 and 1978. 
—— we se, ee ee eee ee swe ees ——- - - 2 eee —_——_— = _ — — * 
— we ie oe - a a ed —— —_-e- es - -2 << ~~ ene eee ee 2 we oe ew ~=_— = 
oe oe 
Unadjusted Visibtlity Ad justed 
Species Year population factor population 
index estimate 
Mallard 1977 96,164 Land 218,000 
1978 70,145 2.70 189,000 
Blue-winged teal 1977 41,666 5.26 219,000 
1978 30,680 8.33 256,000 
Ring-necked duck 1977 4,055 4.16 17,000 
1978 3,654 3.22 12,000 
Other ducks 1977 x6 91 95 4.34 122,000 
1978 37,866 4.16 158,000 
ALL ducks 1977 170,080 577,000 
1978 142,345 615,000 
— 6 a we we a oe ee —— == = tt SSS eee 
= —————— a a a eS ee 
- — 
Table B-l12. Mallard nesting progress in west-central Minnesota as evidenced 
by the occurrence of drake mallards with hens and other drakes. 
a nn ww we ee 0 6 eee. eee _— owe o_o ae a “a cele coe a 
— -, -=—- «= -_ - = eee es = — —_— ee ee ee ee ee ee 
2, —_ - —— = . 
— eee oe ee 
Total number of Percentages of drakes 

Year drakes tallied Paired Single Flocked 
1975 410 324 6.8 89.8 
1976 225 3.5 745 89.0 
19774 692 9.9 5.6 84.5 
1978 373 2.7 7.5 89.8 

ee ee re ow cm ce ee ee oo —— 
“This tally excludes 855 drake mallards gathered with 100 hens on Lightening 
Lake, Otter Tail County and Clear Lake, Stevens County. 
