© 2020 BirdGuides, Warners Group Publications Plc. The Northern Harrier is distinctive from a long distance away: a slim, long-tailed hawk gliding low over a marsh or grassland, holding its wings in a V-shape and sporting a white patch at the base of its tail. We use cookies to improve your experience of this website by remembering your usage preferences, collecting statistics, and targeting relevant content. (1998), who were followed by Simmons (2000) and Ferguson-Lees and Christie (2001). The North American species, which has reached northern South America as a winter vagrant, is Northern Harrier Circus hudsonius, retaining the English name familiar in North America. Mark Warren was quick to recognise a distinctive American raptor, which then went on to stay into October. Stay at the forefront of British birding by taking out a subscription to British Birds. Up close it has an owlish face that helps it hear mice and voles beneath the vegetation. Each gray-and-white male may mate with several females, which are larger and brown. If you continue to use this site we’ll assume you’re happy to receive all cookies. Rarity finders: Northern Harrier on North Ronaldsay. Kimberly G. Smith, Sara Ress Wittenberg, R. Bruce Macwhirter, and Keith L. Bildstein Version: 1.0 — Published March 4, 2020 Text last updated September 30, 2011 These unusual raptors have a broad … Although both species are vagrants out of rage, with a couple western Alaska records of Hen Harrier and several western Europe records of Northern Harrier. Each gray-and-white male may mate with several females, which are larger and brown. Up close it has an owlish face that helps it hear mice and voles beneath the vegetation. Abstract The Hen Harrier Circus c. cyaneus and Northern Harrier C. cyaneus hudsonius are classified as conspecifics by some modern authors and as separate species by others. Records in eBird will be converted to the appropriate species for a given … Receive our FREE e-newsletter. Latest Sightings of Northern Harrier. All Rights Reserved. I'm curious what people's opinions are regarding whether Circus cyaneus cyaneaus and C. c. hudsonius should be split and recognized as two separate species? To filter Rejected records, type Rejected into the Search box, all columns can be filtered. The latest sighting details and map for Northern Harrier are only available to our BirdGuides Ultimate or our BirdGuides Pro subscribers. Exclusive content, book reviews, rarities, special offers and more straight to your inbox once a month. Have you seen something interesting? British & Irish Records Archive is only available to our. Abstract The Hen Harrier Circus c. cyaneus and Northern Harrier C. cyaneus hudsonius are classified as conspecifics by some modern authors and as separate species by others. Click Submit to share your rare bird sightings via our simple form. Northern Harrier - Cambridgeshire © Garth Peacock, Northern Harrier - Norfolk © Baz Scampion. Northern Harrier Taxonomy Question . Richard Klim: Tuesday 14th December 2010 13:35: Ferguson-Lees & Christie 2001 . Please login or subscribe to view this information. Raptors of the World: Quote: [Hen Harrier] Often treated as conspecific with Northern Harrier, but adults of latter … * Bird News Pro and Bird News Ultimate subscribers receive full sighting details. The tendency to treat the two as conspecifics may have its origin in erroneous nineteenth-century illustrations, and their allopatry has meant that twentieth-century adherence to the Biological Species E.g. Mark Warren was quick to recognise a distinctive American raptor, which then went on to stay into October. To filter/search please enter a phrase. All Records (Accepted, Rejected, Pending). The Northern Harrier is distinctive from a long distance away: a slim, long-tailed hawk gliding low over a marsh or grassland, holding its wings in a V-shape and sporting a white patch at the base of its tail. This article is only available to registered users.To read more, please log in or purchase a subscription. Taxonomy: Recently separated from the Hen Harrier of Eurasia, C. cyaneus, based on an analysis of nucleotide sequences of the mitochondrial cytochrome b gene by Wink et al. Gain access to all of the articles available on British Birds, Production & Circulation 4 Harlequin Gardens St Leonards on Sea East Sussex TN37 7PF Tel 01424 755155, Report on rare birds in Great Britain in 2019, Finding Birds in Lapland and Finding Birds in South Finland, by Dave Gosney, Some thoughts on the historical status of the Great Bustard in Britain, Inconsistency in the taxonomy of Hen and Northern Harriers: causes and consequences. 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