Letters

01 May 1960 Comments Letters Migrations of the Oystercatcher Sirs,--Since Mr. D . G. Andrew in his recent paper {Brit. Birds, 5 2: 216-220) on the migrations of the Oystercatcher (Haematopus ostrakgus) makes some criticism of my earlier paper on the same subject (Brit. Birds, 50: 519...
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Notes

01 May 1960 Comments Notes Broken e g g s i n nests of Sparrowhawk.--I can add two records to Dr. D . A. Ratcliffe's list (Brit. Birds, 53: 128-129) of broken eggs of Sparrowhawks (Accipiter nisus), one of them showing that the phenomenon goes back some time. On 7th June 1927, near...
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Letters

01 May 1952 Comments Letters --The increasing use of various types of colour-marking for the field recognition of birds must lead to confusion between individual experiments unless an authoritative central register can be compiled. The Scientific Advisory Committee of the British Tru...
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