Announcements

01 February 1999 Comments Editorials BIRDS: A REMINDER Although colour-marking may be used in purely local studies (e.g. of behaviour), the majority of studies of marked populations depend upon co-operation from all observers who sight the marked individuals. Only in exceptional instances...
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Announcements

01 October 1981 Comments Editorials Peterson Sound Guide discs and cassettes special offer This offer is still open this month. See pages 400-401 in September issue for details. Please resubscribe now If your subscription falls due in January and you have not alrea...
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