July 1954 – vol. 47, issue 7–231 Grey Institute, Oxford.) (Plates 41-43). IN June, 1951, attempts were made to construct an artificial nestling- which could be used to obtain samples of food brought to the young of birds which nest in boxes. Previous experiments have been made by the Russians, and an account of a handoperated artificial nestling is given by Promptow and Lukina (1938), while Smith (1945) gives an illustration of a... This article is only available to registered users.To read more, please log in or purchase a subscription.