Day's Lock/Bishop's Court Farm - Fri 13th a.m.

Caspian Gull, 2nd c/yr. 

Yellow alpha numeric ring on R tibia with a 2 letter/number code. Metal ring on L tibia.

Unable to read the code but appears to be a Dutch ringing scheme. Hope to obtain some more info.

Cattle Egret 4

Shoveler 34

Pintail 2

Wigeon c170