diciembre, 2011

The best bird records of december in Burgos province.  Greated White-fronted Goose (Anser albiforns). 2 birds, 19-12-11 ,Ebro dam(Mario Alonso Blanco).Snow Goose (Ansar caerulescens)…

The new recommendations for species-level systematics and nomenclature of Western Palearctic birds of the AERC TAC 2011 (Association of European Records and Rarities Committees),…