Mid-season movements of Swifts in Sussex
01 June 1952
IN his article, " T h e Movements of Swifts in S u m m e r " (antea, vol. xliv, pp. 146-152), H. G. Hurrell states that " t h e r e is evidence which suggests the possibility of an influx from the Continent about the end of J u n e " . My own observations...