The feeding range of Shags.--Feeding movements by sea-birds are difficult to measure as they often take the form of a seaward or coast wise spread. Occasionally, however, when the feeding area is separated from the roost by obviously unsuitable water, definite movements can be measured. While working at sea in Cardigan Bay during ioth-i2th August 1965,1 noticed an example of such a move ment of Sh...
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