
MISSISSIPPI FLYWAY 
INDIANA 
Weather and Water Gonditions 
Temperatures in May and June were near normal. Pre- 
cipitation was below normal during February and March, and consider- 
ably above normal in April, May and June. 
| Frorn April 5 through July 15, most streams in the. State 
were at flood several times. This condition was most prevelent in the 
central and western parts, and least notable in the narthedst. — 
Breeding Population Data 
Three stream transects totalling 47 rniles have been 
covered during the first 15 days of May in 1952, 1953, 1955; 1956, and 
1957. Forty-five males and .17 female wood ducks were observed this 
year. Observed males were two percent below the figure for 1956, and 
25 percent below the previous four-year average. Observed females 
were 13 percent above those of 1956, and 32 percent below the four«year 
average. One brood of wood duck was observed on the preliminary 
survey this year, compared to two broods in 1956 and two broods ih 1955. 
Production Data 
Nine stream transects totalling 143 miles have been censused, 
by boat, between the last week of May and the third week of June, since 
1950. A total of 75 broods was observed this year. This count is 13.6 
percent above the number of wood duck broods observed in 1956, but 7.4 
percent below the previous (1952-56) five-year average. Twenty of the 
75 broods were in age Class I, 48 in age Class II, and seven in age 
Class III. Whole counts on brood size were obtained for 47 of the 75 
broods. Average brood size for the 47 broods was 8.9, and ranged from 
a minimum of three to a maximum of 16. 
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