Letters

01 December 1983 Comments Letters Shy Albatrosses, elusive Capped Petrels, and great accumulations of shearwaters It is curious how well the observation by Paul Buckley and William Russell, that some European birdwatchers do not appear to be making much progress with seabirds, ...
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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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