Letters

01 August 1952
Comments Letters SIRS,--The Ibis for April 1953 will include a group of papers on Visible Migration (particularly in passerine birds) as observed in various countries. The newly-formed Sub-committee on Visible Migration of the British Trust for Ornithology (see below) fee...
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Notes

01 September 1946
Comments Notes THE habit of sun-bathing by passerine birds.is discussed in a note by T. S. Williams (antea, p. 152). As indicated in the Editorial comment thereto this is probably commoner than at first sight appears to be the case. To the list of species given I can a...
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