I was walking along the canal by Cox's Mill, and under the railway bridge I saw a bit of pigeon activity. This is a common place for pigeons to roost as there are pigeon-sized sheltered tunnels between the girders. I saw some movement in one, so took a "blind" picture with flash, and was surprised to find a picture of two pigeon squabs staring back at me! Definitely the first nestlings I've seen this year.
Pigeon squabs. Not a pretty sight!