Snapped this wee fellow at Leighton Moss at the weekend. Not sure what it is, but think its some type of warbler
Reed warbler. To i.d. marsh warblers, photos would need to be much closer up and clearer. You'd also need to be very, very lucky (unless you're tipped off in advance of where one is).
I'd suggest a common whitethroat but I could be way off the mark!
This is my view:
It's not a Willow Warbler - its back is a dark brown as opposed to grey or olive brown and the marks around the eye aren't right, amongst other things.
It does look like a Reed Warbler with buff underparts and they are pretty common at Leighton Moss, although perhaps heard more than seen!
Marsh Warblers are not particularly common so I would need a reason to suggest it, rather than the other way around … and I don't have one.
I don't think the back is streaky enough for a Whitethroat and the head is not grey with a clear line between the white throat.
So, for me, it's most likely a Reed Warbler.
Others may disagree but that's always a possibility in photo IDs!