| Titre : | British Birds 104(12) - DEC 2011 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
James Parry, Auteur ;
Jeremy J. D. Greenwood, Auteur
Article
Chris Gibbins, Auteur ;
Grzegorz Neubauer, Auteur ;
Brian J. Small, Auteur
Variability in large gulls creates problems for field observers, not least because of the possibility that hybridisation might be responsible for the appearance of what are perceived to be atypical individuals. However, without detailed informat[...]
Article
Dave Mansell, Auteur
A small falcon, initially thought to be a first-summer male Red-footed Falcon Falco vespertinus, was discovered on 14th September 2008 at Tophill Low nature reserve, in Yorkshire. The bird was in moult during its stay and photographs of it in fl[...]
