Letters

01 April 1948
Comments Letters SIRS,--Messrs. Wagstaffe and Williamson's paper (antea, Vol. xl, p p . 322-325), on t h e cabinet colour changes in bird skins, will be read b y all workers in systematic ornithology with great interest. That these changes occur is of course well known, a...
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Notes

01 April 1948
Comments Notes IN a recent volume of British Birds (antea. Vol. xxxix, pp. 212 and 340) records are given of Ravens (Corvus c. corax) nesting in heronries. I should like to record that for several years up to 1942, a pair of Ravens nested in a circle of tall pines cont...
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Letters

01 February 1948
Comments Letters S I R S , -- I t seems a n opportune moment for making a plea t h a t t h e scope of the British Trust Ringing Scheme should be widened by making rings available for use outside t h e British Islands. While we fully appreciate the organizational a n d sup...
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Reviews

01 February 1948
Comments Reviews Aristocrats'' of the Air. By Captain C. W. R. Knight. (Williams and Norgate, London, 1946). 30s. od. The first edition of this eminently readable book was first published in 1935, but has been out of print for nearly twenty years. This, the second edition...
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Notes

01 February 1948
Comments Notes DURING the years 1946 and 1947 I have noticed several species singing outside what appears to be their normal song-period as defined in The Handbook charts. Some of these variations are considerable, others less so. The particulars are as follows :-- NUT...
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