Harriers

I saw a female harrier at Stoborough meadow on Saturday, very close sat on a post on the opposite side of the road and then in flight- Im sure it was a hen harrier as Ive seen them before, and Ive seen a male over the reed beds opposite Redcliffe previously but on the main RSPB pages it says they are only winter visiters to the area?

A friend of mine also said there had been marsh harriers in the area previously but I didnt think that was very likely.

Can anyone enlighten me?

Thanks