













55 
04 
Table B-35. Wisconsin —- Adjusted breeding duck populations estimates for 
Salar sre hye ee Korat | 1973-19783. 
| Dr eS gee te teee Gar | NT ce a see iiss se ae 
| Se + 4 & Changes 
| ake | 5 ae oe ": iss “ oO ! = Blue-winged Other Between 
ma | a |_| Oo Regions and Year Mallard teal - Species been 2 ak eee 
! " S iota "s} a 2 + Ft FO een ne ee ene te are lee ee PC EIS S| Toad 4 
oo ;, OC 2 N : - 1h Pe tee Ae eS 
! “Ja | 4 6 4A 6 = eS Southeast-—Central 
| at a hoa | 1973 45,600 101,600 24,900 172,100 
! oa SS ae de ae || oo” 1974 48,100 143,200 46,400 237,700 +38 
| 1 a FE m i“ o 1975 77,900 219,400 41,000 338, 300 +42 
: Blt Pe thie Sea mm = | 1976 49,500 115,500 9,500 174,500 -48 
She Oa Se ae et aa, 1977 25,700 56,200 12,500 94,400 -46 
0) ae ae ae s) e 1978 30,000 62, 300 22,900 115,200 +22 
A nt a ota =o wmyp% c lol + ee ae Northern High 
7 gi is Oia | 1973 12,600 19, 300 1,500 33,400 
| § | , Hear) 1974 25,000 9,700 8,700 43,400 +30 
qo @ hw © om = + = We | 1975 13,300 18,100 20,000 51,400 +18 
eR Ss ae | 1976 13,300 29,600 12,700 55,600 + 8 
eh ec | n © NH tT a A so if [el on | 1977 18,200 49,000 25,400 92,600 +67 
- | 3| = ise de -ae tS a eS » ov | | is | 1978 28, 300 20, 300 30,700 79, 300 -14 
eet. geth agates Ph, is © g “ *y eS le gh | Northern Low 
x abe | ie oe pe” Be i= ta 1973 36,800 65,600 18,700 121,100 
nm | i ee = a i Pe aan : | 1974 23,500 11,900 3,000 38,400 ~68 
on |: So en “= NS mm | ii rs >| “id a O° 1975 12,800 6,700 4,100 23,600 -39 
z | A) WHE LP ae Sees | teed! S v | | oS 1976 10,800 11,100 27,400 49,300 +109 
E al er | ae ee | 9 > >| eae 1977 15,600 28 , 800 300 44,700 - 9 
| a) Zit oe ee te ee | 1978 21,200 18, 300 6,900 46,400 + 4 
P| ft aja om o ano) er ae x 2 ALL Reg ions 
ae A oi « | - dt eld 1973 95,000 186 , 500 45,100 326,600 
an a: ee yy + i 1974 96,600 164,800 58,100 319,500 = 3 
7 5 | eee ere i. tg is so: 8 (+2%) (+12%) (+29%) 
a4 om th mrs Se o) 6s | Ps Shen “3 1975 104,000 244,200 65,100 413,300 +29 
e | oI yf | o ® - o “ (+8%) (+48%) (+12%) 
9 i ea ae ec, Pas le | 1976 73,600 156,200 49,600 279,400 +32 
a=) | @e ic o 4 SB o = | E = | | _ | 997) (-36%) (-24%) 
| me ot, lh eg ee | , ca 1977 59,500 134,000 38,200 231,700 -17 
5 | Fi a | i a ean ae > ° | @ < ~ (-19%) (-14%) (-23%) 
= | = | i ee oe | Bn Bw q 1978 79,500 100,800 60,500 240,800 +4 
1 | Sere st at Bien MPTP ah ge I} 8 22 ge BY (434%) = (-25%) (+58%) 
- @ Seema) ene Ele Per = Oot eae 2 | 5-Year Average 
3 : ele | Sm “He San = 2 | ah Bie F we (1973-1977) 85,700 177,100 51,200 314,100 
5 | ae fh ot oes 7S i |e 2 2 Viel cma me 
mn ! 3 wo 
= | te me tre = ¥ = | ass “Data are expanded aerial counts based on ground surveys to adjust for birds missed 
| = on eee ye by aerial crews. A change of 20% is Statistically significant. 
a a 5 Included are: Wood duck, black duck, shoveler, pintail, ring-necked, redhead, 
ms | q | 2 B ® z green-winged teal, gadwall, wigeon, ruddy duck and hooded merganser,. 
a | Go a eo en te 3 5 “All estimates rounded to nearest 100. 
2 | e > - 4 > : 3 5 o 
| se silat 

