
MISSISSIPPI FLYWAY 
Production Indices - 
For the area as a whole compared with last year, the number of young. * 
decreased 66 percent with an increase of potential later broods of 14 percent. 7 
Evidence of the retarded season can be seen by comparing the Class I broods 
observed between 1955 and 1956 (48 percent in 1955 compared to 86 Poe 
in 1956). 
Comparison of Young and Potential Later Broods* - 1955-1956 
Number Young Number PLB Percent Change - 
Stratum 1955 1956 1955 1956 Broods PLB 
eaaeoqoaooaauaaeaeeeeeeee—eeeeeEeEeeEeeeoeeeEeEeeEeEeee—————————————————&&——eE——————————eeeEEeS 
Ontario C 123,729 "7,492 17; 743 40,459 -93.9 +128.0 
Manitoba C 58,958 1,936 29,128 2,128 -96.7 - 92.7 
Manitoba D 29,525 7, 330 10,408 © 7,037 -75.2 - 32.4. 
Sask. C South 45,820 11,026 10,530 4,794 -75.9 - 54,5 
Sask. C North 80,066 86, 386 13,244 27, 767 + 7.9 +109. 6 


Total 338,098 114,170 81,053 82,185 -66.2 + 13.9 © 
* Potential later broods as evidenced by pairs and single adults | 
observed during brood survey. 
Comparison of Brood Classification, 1955 - 1956 
oy Class I Class II | Class III 
Stratum 1955 1956 1955 1956 1955 1956 
rp a eo —————————————E————Eee 
Ontario C 7 1 21 3 12 a, 
Manitoba C 22 10 15 1 5 0 
Manitoba D 29 16 14 4 2 0 
Sask. C. South 27 4 23 10 4 2 
Sask. C,. North 10 19 6 5 l 0 | 
Total 95 50 79 23 24 3 

Percent 48.0 65.8 40.0 30.2 12.0. 4.0. 


Conclusions - 
On an area basis there seems little doubt that total production for the 
areas as a whole will be less than last year and the fall flight will be con- 
siderably reduced. | 
