Johnstone, G. W, Gamble, P. H, Nelder, J. A, Mead, J. N, Lees, I. J. F & Adams, R. G / July 1948 – vol. 41, issue 7–223 DURING the spring of 1947 I saw what certainly appeared to be bigamous behaviour by a male Rook (Corvus f. frugilegus) Unfortunately, the observations were rather disjointed, a continuous watch not being possible. On March 14th a well-advanced nest was seen in an oak-tree at Lympstone, Devon, and nearly a mile from the nearest rookery. Even on this date a third bird appeared to be interested in t... This article is only available to registered users.To read more, please log in or purchase a subscription.