in the North and South may not be as different as sometimes supposed. 
Thus, while the spread of the season is certainly longer in the South, 
the effective season, wheh most young are produced, may not be greatly 
longer in the South. That is, some individual doves may raise more 
than three broods in the South, but the average may be much less, 
perhaps similar or even less than that in the North. In a study of 
ten 100-acre areas in 195] in various parts of Georgia, Hopkins and 
Odum found that the production was only 2.1 young fledged per pair, 
and this low production was not due to unusually high mortality but 
to the fact that relatively few nests were actually attempted before 
april or after June. 
