| Titre : | From the rarities committee's files - 'Northern Harrier' on Scilly: new to Britain |
| Auteurs : | John P. Martin, Auteur |
| Type de document : | Article |
| Dans : | British Birds (101(8) AUG 2008) |
| Article en page(s) : | 394-407 |
| Résumé : | A 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 criteria that distinguish hudsonius from the nominate form of Hen Harrier in juvenile plumage. |



