Lesser black backed gull nesting on a roof in Ipswich station.
A very cross looking bird - so it is good that there is a glass panel between the gull and the passengers.

Yesterday - I had lunch with Aidan by the Thames near the Tower - in sunshine like summers ought to be. I saw this gull and another one on nests on the roof of a building on Ipswich Station on the way home. I looked down on them as I crossed the bridge and had just enough energy left to take a pic.