The movements of Swifts in summer

01 May 1951
Comments Main paper 1950 was a good year for studying the movements of Swifts (Apus apus). Well over 20,000 were reported during the special watch held under the auspices of the British Trust for Ornithology. This covered the arrival period prior to May 15th, 1950. Another 2...
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Waxwings in the winter of 1949-50

01 May 1951
Comments Main paper THE following report has been compiled at the request of the Editors, who are glad to acknowledge the response of those who have contributed notes. The British Empire Naturalists' Association have kindly allowed us to include records already published in ...
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