| Titre : | British Birds 108(11) - NOV 2015 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Andrea Corso, Auteur ;
Michele Vigano, Auteur
A poorly known pale variant plumage of the Lesser Spotted Eagle Aquila pomarina is described and illustrated. This plumage presents a pitfall for observers unfamiliar with juvenile Aquila eagles, particularly the rather similar 'fulvescens' plum[...]
Article
Guy Kirwan, Auteur ;
Richard Porter, Auteur ;
Derek Scott, Auteur
Article
Daniel Brown, Auteur ;
Jeremy Wilson, Auteur ;
David Douglas, Auteur ;
Patrick Thompson, Auteur ;
Simon Foster, Auteur ;
Neil McCulloch, Auteur ;
James Phillips, Auteur ;
David Stroud, Auteur ;
Sian Whitehead, Auteur ;
Nicola Crockford, Auteur ;
Rob Sheldon, Auteur
Based on its adverse global conservation status, and the global importance but rapid decline of the UK's breeding population, the Eurasian Curlew Numenius arquata should now be considered the UK's highest conservation priority bird species. A co[...]
Article
Allan Rustell, Auteur
The Willow Tit Poecile montana population in Britain is in serious, long-term decline. It is likely that several factors are responsible for this decline, although those related to habitat change or degradation are thought to be among the most i[...]
Article
Martin Woodcock, Auteur
Article
Richard K. Broughton, Auteur ;
Shelley A. Hinsley, Auteur
The Marsh Tit Poecile palustris is one of several British woodland birds to have suffered a serious population decline in recent decades. Its abundance has fallen by almost three-quarters since the 1960s while its range has contracted by a fifth[...]
Article
Martin Garner, Auteur ;
Yoav Perlman, Auteur ;
Yosef Kiat, Auteur ;
J. Martin Collinson, Auteur
Based on a distinctive call, differences in plumage and a preliminary genetic analysis, the 'Caucasian Water Pipit' Anthus spinoletta coutellii may represent a separate species within the Rock A. petrosus/Water Pipit A. spinoletta complex. The d[...]
Article
John Callion, Auteur
A long-term study of European Stonechats Saxicola rubicola in western Cumbria is summarised. Observations of incubating females revealed some hitherto unknown behavioural patterns, indicating the state of incubation by the readiness of the femal[...]
Article
John Last, Auteur ;
Malcolm Burgess, Auteur
Our understanding of the reasons for the serious decline of the Willow Tit Poecile montana in Britain is constrained by an incomplete knowledge of the species' ecology and demography, which is partly due to the difficulty of persuading Willow Ti[...]
