Roger Tory Peterson Institute, sponsored by Cattaraugus County Bird Club - July 20, 2014.
Trip Leaders: Tim Baird (CCBC), Twan Leenders (Executive Director, RTPI), Scott Kruitbosch (RTPI)

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Roger Tory Peterson's meticulous attention to detail: internal anatomy and careful coloring of the feather groups
Roger Tory Peterson's meticulous attention to detail:  internal anatomy and careful coloring of the feather groups