Letters

01 January 1979
Comments Letters Thermal soaring of raptors I read D r C. J . Henty's paper on thermal soaring of raptors (Brit. Birds 70: 471-475) with interest, and not a little surprise. I t has long been known by ornithologists that raptors use thermals for soaring, a...
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Letters

01 October 1963
Comments Letters S I R S , -- W i t h reference to Mr. Masefield's note (antea, p . 270), fleas m a y generally b e found in T i t ' s nests in t h e winter, a n d during t h e first few warm days in spring m a y be seen waiting in numbers outside t h e hole ready to j u ...
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