MISSISSIPPI FLYWAY 
Table 2 - Trend Data - Wood Duck Nesting Survey - Missouri, 1953-1955 
a a a a a ee 
1953 1954 
Acres of lake and marsh censused 4,976 4,931 
Miles of stream censused 371 581 
Nesting effort per sq. mi. lake 
and marsh 5.8 _ 4.4 
Nesting effort. per mi. of stream 24 .22 
Number of broods 42 31 
Broods per mile of stream .09 . 04 
Average number of ducklings, Class I 4.9 5.8 
Average number of ducklings, Class II 4.4 7.2 
Average number of ducklings, Class III 4.6 - 
Average number of ducklings, All Classes 4.5 6.5 
1955 % Change 
7,110 +44 
666 +15 
3.6 --18 
.13--41 
28 --10 
.03--25 
7.3 © 
6.2 - 
oe 
Table 3 - Trend Data - Mallard and Blue-winged Teal Nesting Survey, 1953-1955 
1953 
Acres of lake and marsh 4,976 
Mile of stream censused 371 
Nesting effort per sq. mi., lake and 
marsh 4. 
Nesting effort per mile of stream 
Conclusions - 
ree 
1954 
4,931 
581 
0 2.7 
19 12 
1954 % Change 
7,110 +44 
666 +15 
2.5 -7 
03 -75 
Comparable trend data covering the past three years show a continual 
decline in nesting attempts and numbers of broods of waterfowl in Missouri. 
Compared to 1954, nesting efforts by wood ducks are down 18 percent on lakes 
and marshes, and down 41 percent on streams. 
Mallard and blue-winged teal 
production was down 7 percent on lakes and marshes, and 75 percent on streams. 
It is concluded that the 1955 fall flight from Missouri will be considerably 
less than last year. 
69 
