Check out this video of Jim Spickler climbing to an eagle nest to band a young eagle:
Banding Day for A63 - Part I
The video is one of a series documenting the entire climb and banding process.
Here's Bob Van Pelt's description of Jim from a post to the ENTS (Eastern Native Tree Society) list serv:
"Jim Spickler is one of the world's great climbers. He has been an instrumental part of every canopy project I have been involved with - from rain forest canopies of the Pacific Northwest, to redwood and sequoia research in California, and the tall Eucalypts of Australia."
Van Pelt is an old-growth researcher, canopy biologist and the author and most excellent illustrator of
Forest Giants of the Pacific Coast
-moss