Source Heysham Bird Observatory (LWT) (http://heyshamobservatory.blogspot.com/2017/03/thwarted-kittiwakes.html)

Thwarted Kittiwakes

Two gangs of Kittiwake clearly did not fancy an overland crossing in todays weather and ended up flying out and across the bay

Kittiwake: flocks of 20 and c135 out/on then out
Iceland Gull: 3CY south quayside then later on Fishers roof