I think it's a collared dove too. We get them in our garden and they look very graceful compared with the wood pigeons which are always hovering for any fallings from the seed fillers
Thanks for your answers. It could be a young collared dove as suggested. It had taken up position on the fence by next doors bird feeders although it had no chance of getting on them. A young magpie did manage a quick go at the feeders despite the 'dove' flapping its wings at it trying to shoo it away.
I think wood pigeon too. I haven't seen my pair of collared doves today, but had 7 young magpies on my feeder this afternoon. They were trying all kinds of acrobatics to reach the dangling fat-filled coconut half then along comes a crow who grabs the string and hauls it up so that it can reach, much cleverer!
Collared doves are beige, not grey, but the one in the photograph looks like the wood pigeons in my garden, though smaller - maybe a youngster? Collared doves are such flirts! One day I saw one sitting on a trellis beside a pigeon and it kept sidling a little bit closer and closer! Eventually the pigeon decided it wasn't interested and took off.
Wood pigeons don't get their colour and the white bits until their second year. The young are beigy grey with a hint of the blue to come around their heads. We are 'blessed' with wood pigeons. They insist on roosting in the tree above where we have to park the car and occasionally lay a random egg!