ATLANTIC FLYWAY 
ore 
Production Data - 
The results obtained this year on the aerial brood counts on Prince - 
Edward Island indicate that there is a decrease in the number of broods 
produced compared with 1956. The principal reason for this is probably 
the heavy snow in early May. This may be offset by re-nesting, and the 
results show later in the breeding season. 
At present, with the brood season only half completed, the ground 
surveys in New Brunswick and Nova Scotia indicate that there is a decrease 
in the number of broods produced and in the number of adults present in 
the region. The smaller number of broods may be offset by the larger 
number of ducklings per brood. 
Table 2 - Comparable Aerial Brood Data (Prince Edward Island) 
Total 
Black Duck Ringneck Goldeneye Teal Game Ducks. 
ee 

a Br. Ad. Bry Ad, Br. Ad, Bre 
1955 277 16 5 “— F -~ 189 1 483 16 
1956 370 36 89 - 45 4 123 15 630 57 
1957 267 26 84 2 6 4 ae 473 30 
Table 3 - Comparable Ground Brood Data (New Brunswick and Nova Scotia) 

Total 

Black Duck Ringneck Goldeneye Teal Game Ducks 
Year Ad. Br. Ad. Br. Ad: Br. Ad. Br. Ad. Br. 
1956 Zil 27 59 - 44 8 69 13 448 50 
1957 223 21 St - 49 12 37 4 381 44 
eee eee eee 
Brood averages are appreciably larger than in 1956 and much larger 
than in 1955. The average number of ducklings per brood this year is 8.2 
as compared with 7.2 in 1956 and 6.5 in 1955. 
Brood data obtained to July 22 are shown in Table 4. 
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