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 :-- NUTHATCH (Sitta europcea dffinis). A bird heard in quite good song on July 22nd, 1947, near Llangollen, N. Wales. Birds heard in song subsequently i...

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