Notes

01 March 1938
Comments Notes I HAVE paid particular attention to the singing of Crossbills (Loxia c. curvirostra) for some years, on and off, and I find that the song can be divided into four main varieties. In attempting to describe these songs below, I use the two sound descriptio...
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Notes

01 August 1929
Comments Notes ON May 21st, 1929, from 11.30 a.m. to 6 p.m., I observed at close quarters a pair of Choughs (Pyrrhocorax pyrrhocorax) at nest on the north Cornish coast. Both parents were feeding nestlings, which were about eight days old. The weather was calm and soft...
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Letters

01 August 1929
Comments Letters S I R S , -- I am able t o confirm to some extent, and in one respect t o amplify, Mr. Rollin's interesting observations on the Fulmar Petrel (antea, p p . 31-3). A t five o'clock on t h e afternoon of July 14th, when I was scanning with a telescope the n...
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