Notes

01 June 1955
Comments Notes Alternative leg positions of birds in cold weather.--It is known that some shore birds, particularly gulls and waders, will adopt alternative leg positions to prevent their feet freezing in cold weather, for example by flying with them tucked forward into...
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Notes

01 June 1955
Comments Notes Unusual nest of Black-throated Diver.--The photographs reproduced on plate 40 show an unusual nest of the Black-throated Diver (Gavia arctica) which I found in June 1954 in central Sweden. This was built up on small rocks in the centre of a large lake whe...
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