Recent reports

01 February 1971
Comments News and comment These are largely unchecked reports, not authenticated records The following analysis deals with November 1970, and all dates refer to that month. The unsettled weather at the end of October continued, with depressions moving in from the Atlantic bringing...
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News and comment

01 February 1971
Comments News and comment Recent B.T.O. conferences The British Trust for Ornithology held two further successful conferences in January at Swanwick in Derbyshire, now the Trust's venue for national meetings. The first was the Ringing and Migration Conference during 8th-1oth Janua...
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Letters

01 February 1971
Comments Letters Elusive species and the B.T.O. Ornithological Atlas project Some species are proving to be difficult to locate in fieldwork for the Ornithological Atlas. In order to prepare full maps for these species, we cannot rely solely on fieldwork carried out purel...
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Reviews

01 February 1971
Comments Reviews Signals for Survival. By Niko Tinbergen and Hugh Falkus. Drawings by Eric Ennion. Clarendon Press, Oxford, 1970. 80 pages; 88 photographs; many coloured sketches. £2. Based on the B.B.C. film which won the Italia Prize for documentaries in 1969, thi...
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