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  • All fields: hacker
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    • Red-cockaded woodpecker (Picoides borealis)

    • Endangered species; Employees (USFWS); Habitat conservation; Habitat restoration; Proposed Endangered; Proposed Threatened; Birds; Biologists (USFWS);
    • Prior to European settlement, it is estimated that the red-cockaded woodpecker (RCW) (Picoides borealis) population totaled approximately 1.0 to 1.5 million groups of birds. Its historic range extended from Texas north to Missouri and east through...
    • FWS Employee with Peregrine Falcon

    • FWS Employees (USFWS); Endangered species species;Birds; Raptors; Monomoy NWR; Maine; National Wildlife Refuge
    • FWS personnel with falcon "hacker." The decline of the Peregrine Falcon coincided with the introduction of the pesticide DDT in 1947. Birds of prey at the top of the food chain, such as falcons, ingested relatively high levels of the pesticide,...

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