Trouble with many birds is you only get a fleeting glance..and its gone.
Driving to work, 6.30am. Right on the edge of town bordering the fens a raptor crosses low in front of me, low enough to see his back as he glides past 30ft in front and to the side of me.
I tried to concentrate on detail in that few seconds, smaller than a kite, slimmer than most buzzards, bigger than sparrowhawk or kestrel. Moderately slim, longer neck than kestrel, head quite out front. Mottled plumage, NOT speckled, lightish coloured head, mid brown mottled feathers on its upper and noticeable grey patches on the upper wings near its body. And then its gone....
Ive seen so many Buzzard and Kite, quite a few Marsh Harrier, Hobby and Merlin ive seen, nothing obviously like this, so frustrating because many raptors have such varied plumage, male , female, jeuvenile...its so variable.
Looking at photos on google, Marsh Harrier have grey patches on their upper wings although more toward the wingtips. I'm guessing Marsh Harrier, maybe a young one judging by the siz and there is a breeding population near Whittlesea, only a few miles away as the crow flies.