Notes

01 March 1938
Comments Notes I HAVE paid particular attention to the singing of Crossbills (Loxia c. curvirostra) for some years, on and off, and I find that the song can be divided into four main varieties. In attempting to describe these songs below, I use the two sound descriptio...
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Letters

01 September 1937
Comments Letters SIRS,--I think Mr. David Lack is clearly right in concluding from the scene he describes (antea, p . 82) t h a t the crest of the Goldcrest (Regulus r. anglorum) is an instance of ornamentation functioning as a " threatcolour", and used for t h a t purpo...
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Notes

01 August 1937
Comments Notes "--As many ornithologists are already aware a new edition of A Practical Handbook of British Birds has been for some time in preparation. We should be very grateful to any of our readers who would now send us notes of any omissions or errors in the origin...
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