A long-term study of the breeding population of Northern Wheatears Oenanthe oenanthe on Skokholm, Pembrokeshire, began in 2017. It involves colour-ringing the breeding adults and their young to monitor survival and behaviour. The aim is to build on the groundbreaking work on Skokholm by Peter Conder between 1947 and 1954, and again between 1978 and 1983 (Conder 1989). This research and other studi


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