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Documents disponibles écrits par cet auteur (7)
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Article
Ken Smith, Auteur ; Linda Smith, Auteur ; Rob Clements, AuteurIn recent decades, the Lesser Spotted Woodpecker Dryobates minor has declined in both population and range in Britain. It is difficult to monitor, occurring at such low density in many areas that it is rarely encountered during BTO/JNCC/RSPB Bre[...]
Article
Rob Clements, AuteurDuring recent years, the Common Buzzard Buteo buteo has spread eastwards from its former strongholds in western and northern Britain. At the same time, there is evidence that the species is now breeding at a much higher density than previously r[...]
Article
Rob Clements, AuteurEstimates of the British population of Common Kestrel Falco tinnunculus suggest a continuing decline in the past 30 years, from around 100,000 pairs in the early 1970s to little more than a third of that level in the early years of this millenni[...]
Article
Rob Clements, AuteurThe Hobby Falco subbuteo has traditionally been regarded as a localised and extremely scarce breeding bird in Britain. There is now good evidence to suggest that the population has increased significantly during the past 20 years, and that this [...]
Article
Rob Clements, Auteur ; Colin Everett, Auteur ; Anthony Messenger, AuteurRecent atlas data, at both national and local level, show that the breeding distribution of the Hobby Falco subbuteo in Britain has expanded markedly. Dedicated survey work in parts of central and southern England shows that Hobbies may breed at[...]
Article
Rob Clements, Auteur ; Colin Everett, Auteur ; Anthony Messenger, AuteurRecent atlas data, at both national and local level, show that the breeding distribution of the Hobby Falco subbuteo in Britain has expanded markedly. Dedicated survey work in parts of central and southern England shows that Hobbies may breed at[...]
Article
Rob Clements, AuteurThe failure of the Common Buzzard Buteo buteo to re-establish itself as a breeding species in much of eastern Britain has been the subject of much speculation over the past 30 years. Recently, however, there is evidence that Common Buzzard are f[...]
