Grimsbury Reservoir: 30th April

5 Arctic Terns, through early AM
5 Black Tern, short time late evening
2 Common Terns, through mid morning
Hobby
Common Sandpiper
Little Ringed Plover

Upper Cherwell Valley

2 Whinchats
Wheatear
Common Sandpiper (probably the same as above)

per JFT, GB, CW