Went to UPC yesterday and found the bird hide was burned down in July! However there is a very nice bench overlooking the bay if you go in the direction of Asda. From here you can see lots of stuff: B Tailed Godwits (loads), Redshanks (loads but not as many as the godwits), hen harrier(?), egrets ( little), swan family, ducks, Canada Geese, Bluetits and wren.
My Dorset Home 
Was this arson? Looks very localised for grass fire
Yes, arson. So sad that people should want to do such deeds.