(VA) (Northern Virginia Bird Alliance) Did you know that the osprey is one of the greatest environmental success stories? Osprey numbers crashed in the early 1950s to 1970s, when pesticides poisoned the birds and thinned their eggshells. Osprey studies provided key support for wider legal arguments against the use of persistent pesticides. Learn more about their history, the challenges this species faces today in the Chesapeake Watershed and how you can help. Joanie Millward is the founder and Executive Director of the Virginia Osprey Foundation.