An evening visit to Harrington Airfield was eventful with the discovery of an interesting 'ringtail' harrier. The bird was first seen at about 7.15pm as it quartered the ground near to the airstrip and alongside the B576. The bird flipped over the B576 and was last seen heading off towards Loddington. The bird was on view for about five minutes and appeared small but relatively long-winged, very dainty and bouyant in flight. I struggled to see plumage specifics but the general impression was that the bird closely resembled a Montagu's.
A single Raven and a Wheatear were also present at Harrington, and a Siskin lingered at Kelmarsh Hall.