The index of heron population

01 March 1950
Comments Main paper The number of heronries on which reports for 1949 were received at the Edward Grey Institute was 162, or 16 more than in the previous year. Of these 117 were in England, 9 in Wales, 17 in Scotland and 19 in Ireland. We are indebted to 79 informants of who...
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The Behaviour Of Corn-Crakes

01 March 1950
Comments Main paper MASON DURING the past few years the writer, with the help of friends, has carried out a series of experiments with Corn-Crakes {Crex crex) The experiments consist in calling up Corn-Crakes to a stuffed dummy by imitating the " crake-crake " song with a p...
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Some notes on the Long-eared Owl

01 June 1941
Comments Main paper (Plate i.) does not appear to be a great deal of literature concerning the nocturnal habits of the Long-eared Owl (Asio o. otus), and, to a large extent, this can be understood as observations during the hours of darkness are difficult, and sometimes impo...
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Notes

01 June 1941
Comments Notes IT appears from the Handbook of British Birds that no display other than the song-flight has been recorded for the Greenfinch (Chloris ch. Moris). On May 2nd, 1941, my attention was drawn to a shrubbery in Staffordshire frequented by Greenfinches by a no...
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