tags: Northern Harrier, Circus cyaneus, birds, mystery bird, bird ID quiz
[Mystery bird] female Northern Harrier, Circus cyaneus, photographed on the Fort Pierre National Grasslands in South Dakota. [I will identify this bird for you tomorrow]
Image: Terry Sohl, 26 November 2008 [larger view]
Photo taken with a Canon 50D, 400 5.6L.
Please name at least one field mark that supports your identification.

































Comments
Female Northern Harrier, Circus cyaneus. You can see the facial disc, and it's female by the streaky breast.
Posted by: Robyn | June 6, 2009 11:27 AM
Darn. Got it wrong myself. I was fooled as I thought the tail should look longer so I discounted harrier despite the other evidence. Then I saw Robyn's answer, checked my bird guide, and I see Robyn is right.
Posted by: Daniel J. Andrews | June 6, 2009 12:21 PM
Agreed, Northern Harrier, and note the (proportionally) l-o-n-g wings.
Posted by: pk1154 | June 6, 2009 5:59 PM
I always called them Marsh Hawks. Is that improper?
Posted by: Gail Storm | June 6, 2009 9:05 PM
it has a falcon shaped head. what a beautiful bird.
Posted by: Adelle | June 6, 2009 9:48 PM
Their common name used to be Marsh Hawk, but it got changed. I don't recall why anymore, I think it has something to do with a similar name in Europe, but I could be wrong on that count.
Posted by: Robyn | June 7, 2009 5:01 AM
I still call them Marsh Hawks unless I am talking to someone else! I like that name better. :)
Posted by: DonnaB | June 7, 2009 5:24 PM
called Hen Harrier in the UK unpopular with game keepers as they feed on young grouse on the moors.
Posted by: Graham Anderson | October 26, 2009 11:27 AM