Letters

01 March 1979
Comments Letters Field identification of Snowy Egret. When discussing the problem of distinguishing the Snowy Egret Egretta thula from the Little Egret E. garzetta in the field, Stanley Cramp (Brit. Birds 70: 206-214) and I. J . Ferguson-Lees (in...
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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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