Hybrid Great Tit x Blue Tit

01 April 2021
Comments Notes On 2nd February 2019, CE was mist-netting at a garden feeder near Hexham, in Northumberland, at a site where he has trapped in excess of 20,000 Great Tits Parus major and Blue Tits Cyanistes caeruleus (approximate ratio 1:2) since 1985. A...
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Request

01 March 2002
Comments Editorials A study of Common Crossbills Loxia curvirostra in Scotland, shortly to be published in Ibis, has shown that the birds have different call types, recognisable on sonograms of tape-recorded calls. This finding matches the results of work carried out in N...
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Notes

01 January 1979
Comments Notes Success of artificial island nest-sites for divers  The breeding success of divers Gavia in south mainland Argyll has been very poor For some years (e.g. one young from eight pairs): too low to ensure maintenance of the populatio...
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Notes

01 February 1976
Comments Notes Peregrine and Raven possibly contaminated by Fulmar oil With reference to R. A. Broad's paper on Fulmar Fulmarus glacialis oil contamination (Brit. Birds, 67: 297-301), the following observations of possible oiling may be of interest. On 10th J...
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