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Titre :	Report on scarce migrant birds in Britain in 2008-10 Part I: non-passerines
Auteurs :	Steve White, Auteur ; Chris Kehoe, Auteur
Type de document :	Article
Dans :	British Birds (107(3) MAR 2014)
Article en page(s) :	142-176
Résumé :	This report presents data on scarce migrant non-passerines for the years 2008-10. For most species, these three years continued trends identified in the last report, covering 2004-07. Most Nearctic waders, notably American Golden Plover Pluvialis dominica, Buff-breasted Calidris subruficollis and Pectoral Sandpipers C. melanotos, showed further increases. There were two apparently separate influxes of Grey Phalaropes Phalaropus fulicarius in autumn 2008, in southeast England and western Scotland, which came close to doubling the previous highest national total of the species. Kentish Plover Charadrius alexandrinus moved ever closer to national rarity status and two other species appeared to cross the national rarity threshold: Ferruginous Duck Aythya nyroca numbers averaged only ten over the three years and just two new Night Herons Nycticorax nycticorax appeared in both 2009 and 2010. The recent increase in numbers of both Cattle Egrets Bubulcus ibis and Great White Egrets Ardea alba was sustained with numbers of the latter surpassing the previous peak in both 2009 and 2010. A record number of White-billed Divers Gavia adamsii was recorded in 2008, after which it was removed from the BBRC list, and two further high totals followed. After poor years in 2006-07, Red-footed Falcon Falco vespertinus numbers bounced back with 44 in 2008, although it remains one of the rarest of Britain's scarce migrants. The first wintering Black Kite Milvus migrans for Wales spent ten weeks in Radnorshire in early 2010 and was one of the most notable records for any species.

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