Jourdain, F. C. R, Witherby, H. F, Jourdain, F. C. R, Witherby, H. F, Witherby, H. F & Jourdain, F. C. R / June 1939 – vol. 33, issue 8–24 IN response to the editorial appeal (antea, Vol. XXXII, p, 118) for information on cliff-breeding in the House-Martin (Delichon u, urbica) a number of observers have sent in records. From these it is obvious that breeding under natural conditions is far more extensive than was previously suspected, and manyreports have been received from England, Wales and the Isle of Man and a certain number from... This article is only available to registered users.To read more, please log in or purchase a subscription.