Lake and Marsh Curveys-Waterfowl Population Densities 

Sq. nets Prs, Pra./Sq. Mi. Totel Total Ducks/ Coot/ 
Boll Region Miles FVS WCD Fas WD Dueks Ceot Sa.bi. Sq. Mi. 
Central Sand 7,82 2Y. (6h 2:9 aie Gl 40 11.7 3.84 
S.GMiami,F.8.L, 1.40 437 190 4.2 A.6 19 bh 17,0 5.8 
5S.E.Miani, Loam 11,A2 Mm 6600 BA 4A.e 1 BG olAad ee 
Red Clay Soil Tires 3804104 34 9.3 154 ti, 13.7 Bese. 
N.f.Sandy & Minmi- 
F.S.L.{Green Bay) 4.00 Ss. 964 12.8 23.7 173 i200 43.7 30.0 
HE, Sandy B75 0 2 0.0 O.7 22 fs) 20 O.0 
eb. Sandy ser 63 Ae Te 20 5.8 740 235 34,2 10.9 
centan Loom Loam AY 13.18 2.0 2.8 Sf 4 9.2 0.6 
TOTAL 77.09 C9 342 561 9.27 7.28 1603 595 20.8 Fae 

From the aerial data it anpaears that many blye-winged teal are misssd, 
althouch thers is no ground work to confirm this except that conducted on Aorleon 
Maras fnot efted here). The number of black ducks breading on theses large lakes 
and marshes is apnreciably ereater than indicated by cross-country transects, 
Several areas in the southeast have black duck populations which nearly equal 
those of thea common mallard. Ring-necked ducks were found in eppreciable numbers 
in northern and ¢entral Wisconsin and redhsads wears obviously breedins in numbers 
in #xees6s of what was preriously krown. Gadwalls were found brsedin-e in numbers 
only in the Green Bey terion. A few canvasbacks rere obserred in northwestern 
ristensin and a very few were found in the southeast; obviously sone of thease 
birds mey te resident breeders. tlest of the Canada peess observed were shviously 
some of these birds may be resident breeders. Most of the Cansda reese observed 
Were observed ware obviously late migrant flecks, but in at least thresa instances 
pairs were observed which wears apyarantly breeding birds; confirmetion has teen 
obtained on two of these pairs which wars observed on the Necedah National Wildlifs 
Refuges. 
Speciss Composition as Indicated by Agrial Laks Surveys-- 
Waterfowl Breeding Grounds Surrsy 



Lone Total* 
Lons Fe- Total* Fe- Total Percent of 
species Pairs Males males Males males Unsexed Birds Total 
Mallard 28 4,0 2 264 48 3 304 19.1 
Black duck 17 18 } Os Ll? 2 113 FL 
Gadwail ll L 0 12 11 . 24 eA 
Baldpats 8 a a 1l 9 AS) 60 4.8 
Pintail i } 0 4 0G 1 A 0, 4 
Dlug-wing 12 2 0 lt 12 9 a3 Pa 
Wood duck Oo Q 0 o 0 11 Ll OF 
Rine-noek 1 QO O 1 1 Lie ct 2d 
Redhead 3 iy 2 26 ti 13 50 3.1 
Canvasback a 0 2 19 a 
Ocaup 2d, E 0 BY 47 50 3 637 AG, 
colden-9y¢ 1 1 0 "7 i 0 lo O.6 
Hoated mare. 1 + 0 1 0 2 0,1 
AM, Mere, 2 0 Q fi it 4 Li 0.7 
Ruddy z i], Ch s z= 6 He 
Canada poose 2 9 o 2 if 20 vs 
Ducks 2 
Unidentified 2 ) Pag ee 2 ae 
4 5o4 183 5 1,593 100.0 
Coots a8 
*Includes summerin;: dueks and flecked birds not included in eclums 2 to dye 
190 : 
