Leader, P. J, Dunn, J, Batchelor, I. R. C, Gooch, B, Gibson-Hill, C. A, Knowles, C, Hohn, E. O, Hope, J, Southern, J, Turner, L. L, Ryves, B. H, Shaw, A, Leader, P. J, Southern, J & Dunn, J / February 1948 – vol. 41, issue 2–⁠61

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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