British Birds June 2018

Published on 01 June 2018 in Latest issues

BB eye  Birds and plastic  Nina O’Hanlon

The identification of juvenile Common and Pallid Swifts  Separating Common Apus apus and Pallid Swifts A. pallidus in autumn in a vagrant context can be one of the more difficult challenges for birders in northwest Europe. This paper describes the key identification characters of Common and Pallid Swifts in juvenile plumage.

Saving the Spoon-billed Sandpiper: a conservation update  The Spoon-billed Sandpiper Calidris pygmaea is one of the most threatened waders in the world. Without concerted conservation action it would now have been on the cusp of extinction. In this paper, the action taken and the challenges that remain are described.

‘Caspian Reed Warbler’: new to Britain An unstreaked Acrocephalus warbler found freshly dead near Jenny Brown’s Point, Lancashire & North Merseyside, on 11th December 2011 proved to be an unseasonal Reed Warbler. The following year acold-looking, unstreaked Acrocephalus was discovered at Kergord, Shetland, on 4th November 2012. Theseare the first records of Caspian Reed Warbler in Britain.

Interspecific territoriality by mixed-singing and song-switching Willow Warblers Observations of two mixed-singing Willow Warblers in Surrey indicated that both birds were interspecifically territorial with Common Chiffchaffs, whereas normal Willow Warblers were not obviously so. The birds’ behaviour, considered together with habitat and population changes, is consistent with ‘character convergence’.

Rarities Committee news

Letters  More on high-carbon ornithology

Book reviewsNews & comment and Recent reports complete the June issue.

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