Appendix: Data banks of the British Trust for Ornithology

Author(s): Greenwood, J.J.D.

Editors(s): Grubb, P.J. & Whittaker, J.B.

Published: January 1990

Publisher: Blackwells Scientific Publications, Oxford

ISBN: 978-0521100632 / 0521100631

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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.

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Appendix: Data banks of the British Trust for Ornithology

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