TABLE F-34,~--Long-term trend waterfowl brood and late-nesting indexes by species for 
Species 
Broods: 
Duckbrood index------ 
Average brood size ss 
Coot brood index----- 
Late nesting index ?: 
Dabblers: 
American widgeon--- 
Green-winged teal-- 
Blue-winged teal--- 
Shoveler-------+--- 
Pintai]---------<=- 
Subtotal--------- 
Divers: 
southern Manitoba, July 1958-63 
[ Index numbers in thousands | 
eee ee eee ee 
ee ees ae ee 
ee ee 
ee eS a es ee ee 
Ce ee 
Oe ee ee ee er 
ee ee ey a ee ee 
ee ee 
er ee 
ee ee ee es et 
et ee ee ee er 
Goldeneye -----~---------~------------ 
Bufflehead-------------------------- 
Ruddy duck--------------------+<--=- 
Subtotal ---------+---- +--+ ee - 



rw] 
Wl, whorw 
ww 
ee 
re 





1 Class II and III broods only. 
As indicated by adult pairs and singles. 
TABLE F-35,--Waterfowl population summary southern Manitoba, July, 1963 
Stratum A 
10, 368 





Stratum B Strata A and.B 
Area in square milesS--~---<---"-----e+2--r-- 
Lineal miles in sample---------------------- 
Square miles in waterfowl sample------------ 
Broods: 
Broods s@@Nn-<----- 38 enn nee ene ene sewcene 
Brood indexes ~-~0--- 8-4 - ewes een en nee enna “ 
Broods per square mile--------------<--<--= 
Late nesters: 
Late nesters Be@NW---<2-e-- n-ne nnn ne nna 
Late nesting index--~-~-----<--<+----2"---=- 
Late nesters per square mile---------+---- 9 
Coots: 
Coot broods s@e@N--=-------n2 -n eben nen ennn= 
Coot brood index-- ------<-------en-nece--- 
Coot broods per square mile--------------- . 
“Ponds: 
Ponds: seen-----~-= pone meres aseescen PRemes 
Pond index----=------- eintatahatating See aa Sa 
Ponds per square Mile----<-~-----9-------- 
Expansion factor------~-~-- coer eeceee= siatatalated 
hol 
177,700 
3,254 
322,800 

359-75 

Note: Transects B 9 and 10 not flown. 
154 
