My collection and the British Trust for Ornithology

Author(s): Witherby, H.F.

Published: January 1933

Journal: British Birds Volume: 27

Bird Sound ID in Summer (2 sessions, Wednesdays 10am)

Bird Sound ID in Summer involves two interactive online sessions of about two hours each, complemented by supported self-study exercises. We place a strong emphasis on providing you with tools and techniques to help you...

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BirdTrack migration blog – early spring

It may still feel like winter but for some species, the increasing temperatures and lengthening days have already kick-started spring migration, with birds starting to arrive and depart across Britain and Ireland.

Tagged Lesser Black-backed Gull. Gary Clewley

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Bird tracking

Phil Atkinson explains the technology behind tracking.

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My collection and the British Trust for Ornithology

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