ONCE again we are glad to include a series of reports from the Bird Observatories. During 1952, one new Observatory--at Dungeness in Kent--was opened, thus bringing to eleven the total engaged in this kind of work, a total that has been further increased in 1953 by the formation of an Observatory on Bardsey Island off N . Wales (cf. antea, p . 272). Experimental work with Heligoland traps has been...

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