Sunday 13 June was our 4th of 12 Constant Effort Site (CES) sessions run by Ana Cowie and Tony Corscadden and assisted by Sophie Bennet and Saskia Wischnewski, RSPB seabird scientists. 7 new birds were caught: 1 bullfinch, 1 chiffchaff, 1 reed bunting, 1 sedge warbler, 2 whitethroat and 1 yellowhammer plus 7 retraps: 1 sedge warbler, 2 whitethroat, 3 willow warbler and 1 wren. The grand total of 14 birds was low but weather affected by the mostly hot, sunny and windless conditions. Subsequent sessions will be busier as fledglings become active.
The bird featured is a female reed bunting (Emberiza schoeniclus) age code 5 i.e. 2nd calendar year. In autumn 2020 it performed a typical post-juvenile moult of body feathers, lesser, median and all greater coverts and, normally, all tail feathers, though this bird has retained its central pair. The adult type denser, glossier, darker coloured greater coverts and tertials contrast with the paler and worn juvenile flight feathers, primary coverts and alula feathers.