Moffett, A. T, Nethersole-Thompson, D, Musselwhite, D. W, Macpherson, A. H & Evans, C. I / July 1940 – vol. 34, issue 8–48 AT a rookery in Surrey, on March 30th, 1940, at 12.5 p.m., Rooks (Corvus f. frugilegus) were seen to change over at the nest. One bird--obviously a male--flew in and standing on the nest edge fed his plainly visible mate. During the meal wing-action by the hen was observed. This was no doubt a form of " submissive ceremony " which has been described by various observers. After this the sitter was s... This article is only available to registered users.To read more, please log in or purchase a subscription.