Thaler, E, Richardson, C, Walton, P, Carter, H. E. J, Meadows, B. S, Phillips, W. W. A, King, B, Ledlie, R. C. B, Pounds, H. E, Thaler, E, Richardson, C, Pounds, H. E & King, B / July 1967 – vol. 60, issue 7–305 Call-notes of Slavonian and Black-necked Grebes in autumn.-- On 24th September 1966, at the Queen Mary Reservoir, Middlesex, I heard an unfamiliar call which I eventually traced to an apparently immature Slavonian Grebe Podkeps auritus. It persistently uttered a triple keeawuk-keeawuk-keeawuk, each time stretching up its neck and looking round in the manner of a young bird calling for food. The pi... This article is only available to registered users.To read more, please log in or purchase a subscription.