Trolliet, B, King, B & Kitchen, T. B / December 1977 – vol. 70, issue 12, pp 560–561 Black-headed Gulls foot-paddling on grassland Joh. J. Frieswijk's letter (Brit. Birds 70: 266), recording frequent observations of Black-headed Gulls Larus ridibundus foot-paddling on grassland in the Netherlands, contrasted with my note drawing attention to the lack of British observations (Brit. Birds 69: 180-181). I have now received confirmatory information of the behaviour in West Germany a... This article is only available to registered users.To read more, please log in or purchase a subscription.