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Auteur John P. Martin |
Documents disponibles écrits par cet auteur (2)
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Article
John P. Martin, Auteur ; Martin Garner, AuteurA male Falcated Duck Anas falcata in Devon in winter 2006/07 was a subject of much debate in terms of the bird's age. Research on the subject involving the study of captive birds and museum specimens concluded that the Devon bird was a first-win[...]![]()
Article
John P. Martin, AuteurA juvenile harrier on Scilly from 22nd October 1982 until 8th June 1983 has now been accepted as Britain's first Hen Harrier Circus cyaneus of the Nearctic race hudsonius, or 'Northern Harrier'. This article describes the occurrence and presents[...]



