Iberian Chiffchaff: a new breeding species for Great Britain

Published on 08 February 2018 in Main articles

By Ed Hunter

Abstract In May 2015, I discovered a singing male Iberian Chiffchaff Phylloscopus ibericus on territory in the Nedd Valley, Gower. Some weeks later, I made a considerably more startling discovery while attempting to study and record the bird’s song variations for my BBRC submission. The male Iberian Chiffchaff was observed feeding recently fledged young; also present was an adult female, giving the distinctive and diagnostic call of Iberian Chiffchaff. The pair went on to raise a second brood and at least seven chicks fledged, including two young males from the first brood. This is the first known breeding attempt for this species in the UK, and this paper describes the full circumstances of the record.

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Male Iberian Chiffchaff, Nedd Valley, Gower, May 2015. Ed Hunter