invasions occurred between 1833 and 1945. The interval between 

 these varied from 2 to 14 years, but nearly half (11) were at intervals 

 of 4 years. A great flight occurred in the winter of 1926-27 when more 

 than 1,000 records were received from New England alone, but the 



500 Miles 

 Nesting Area 

 Northern Recoveries 



Fi(ju re 29. Northern recoveries of young bald eagles banded as nestlings in Florida. The 

 birds sometimes "migrate" over 1,500 miles up the coast during their first summer 



before returning south (From Broleij 1947). 



93 



