Letters

01 March 1952 Comments Letters SIRS,--We are hoping to collate information about visible migration over, and on the shores of, the Mediterranean. Very little has been published on the subject and no doubt a good many unpublished records, especially those made on voyages, are in existen...
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Letters

01 September 1939 Comments Letters SIRS,--In "Some Notes on t h e Diurnal Song of Birds " (antea, p . 4) Mr. Marples states t h a t on t h e average t h e Blackbird, a t Inverness, begins t o sing in the morning 74 minutes earlier than Blackbirds do i n Hampshire, t h a t is, after correct...
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