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  • All fields: aphids
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    • David Lenhart oral history transcript

    • Biography; Employees (USFWS); History; Pesticides; Biologists (USFWS); Birds; Fishes; Waterfowl;
    • David Lenhart oral history interview as conducted by Jerry C. Grover. Mr. Lenhart worked at the following locations during his tenure with the Fish and Wildlife Service: Matanuska Valley, Alaska, 1955, GS-5; 1956 GS-5 Umatilla, Oregon; Portland...
    • Familiar migratory songbirds

    • Birds; Birdwatching; Migratory birds;
    • This is a booklet that describes various migratory birds that are familiar in the United States. The species covered include the American robin, the American goldfinch, the Ruby-throated hummingbird, the eastern bluebird, the barn swallow, the gray...

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