February 2022 – vol. 115, issue 2, pp 103–104 On 13th May 2021, I visited the beach at Thornwick Bay, Yorkshire, at low tide. On the high-water tideline at the top of a shingle ridge, a Wood Pigeon Columba palumbus was picking through the dried pieces of seaweed, selecting material for nest-building. Once a suitable piece was chosen, the bird would fly off and into a large cave-like tunnel through an outcrop at the back of... This article is only available to registered users.To read more, please log in or purchase a subscription.