. Bulletin of the British Ornithologists' Club. Birds. Club Announcements Uf\ <D^ V Bu\ 2005 125(3). Bulletin of the I m 2 a m BRITISH ORNITHOLOGISTS' CLUB Vol. 125 No. 3 Published 5 September 2005 CLUB ANNOUNCEMENTS Members attention is drawn to the inside back cover whereon revised arrangements for membership correspondence, subscriptions and applications can be found. All membership matters should now be addressed to the BOC Office, Box 417, Peterborough PE7 3FX, UK. E-mail: Correspondence on all general Club matters should continue to be addressed to: Th
. Bulletin of the British Ornithologists' Club. Birds. Club Announcements Uf\ <D^ V Bu\ 2005 125(3). Bulletin of the I m 2 a m BRITISH ORNITHOLOGISTS' CLUB Vol. 125 No. 3 Published 5 September 2005 CLUB ANNOUNCEMENTS Members attention is drawn to the inside back cover whereon revised arrangements for membership correspondence, subscriptions and applications can be found. All membership matters should now be addressed to the BOC Office, Box 417, Peterborough PE7 3FX, UK. E-mail: Correspondence on all general Club matters should continue to be addressed to: The Hon. Secretary, S. A. H. (Tony) Statham, Ashlyns Lodge, Chesham Road, Berkhamsted, Herts. HP4 2ST, UK. E-mail: The 928th meeting of the Club was held on Tuesday 25 January 2005, in the Sherfield Building Annexe, Imperial College, London. 19 members and 6 guests were present. Members attending were: Dr C. F. MANN (Chairman), Sir D. BANNERMAN, Miss H. BAKER, I. R. BISHOP, D. R. CALDER, Cdr. M. B. CASEMENT, Prof. R. A. CHEKE, Dr G. CHILTON (Speaker), F. M. GAUNTLETT, D. GRIFFIN, K. M. IDDI, R. H. KETTLE, S. W. LOWE, D. J. MONTIER, P. J. SELLAR, T R. SMEETON, S. A. H. STATHAM, C. W. R. STOREY and R. P. WEBSTER. Guests attending were: Lady (P.) BANNERMAN, Ms G. BONHAM, Mrs C. R. CASEMENT, Mrs M. H. G. GAUNTLETT, Mrs M. MONTIER and Dr J. NICHOLSON. After dinner, Dr Glen Chilton gave an entertaining talk on Lessons learned from the songs of North American sparrows and warblers. The following is a brief synopsis. Birdsong has been studied systematically for more than 200 years. Today's ornithologists are only now substantiating the astute guesses of much earlier investigators. Although it is dangerous to make sweeping generalisations about the behaviour of 4,000 songbird species, some general rules are apparent. Individuals of both sexes learn species-specific songs, but in most cases only the male sings. Performance is the result of higher testosterone levels in m
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1893
