Virginia's bald eagles thriving at a never before seen level after pesticides ban.

A total of 1,070 occupied bald eagle nests were counted in this year's survey by the Center for Conservation Biology at the College of William and Mary. It's the first time more than 1,000 have been counted since the survey started 60 years ago.

Another is the speed at which a mate is replaced. Bald eagles typically mate for life, but when one partner dies now, Watts said "there is a string of suitors immediately that comes into that space."