A big tide out on the Mersey estuary slowly edged over the salt marsh stopping well short of the banks of Frodsham Score. There were plenty of gulls taking advantage of the salt marsh to roost while hundreds of Black-headed Gull tried their luck flushing out rodents that may have been forced from their hiding places ahead of the advancing tide.
Curlew by far the commonest shorebird flushed by the tide with a few Black-tailed Godwit and really surprisingly no Ringed Plover or Dunlin!
Out on the River Mersey there were hundreds of Common Shelduck but specialising in all things Canada Goose the Mersey estuary is by far the best (or worst) place in the NE Atlantic for this species.
A few Yellow Wagtail were moving back and to across the Manchester Ship Canal and a couple of juvenile Marsh Harrier quartered the distant salt marsh dislodging even more Curlew from their hiding places.
A walk back along the track to No.6 tank was pretty uneventful and a quick scan over what is essentially an Atacama Desert wannabe on No.6 sludge tank revealed, 71 Ringed Plover, 20 Dunlin and 9 Black-headed Gull.
A Green Sandpiper dislodged itself from cover while a mixture of hirundines were busy fueling up and a lone Common Swift drifted over.
Observer and images: WSM.