I'm sure when have nests on the bushes and hedge that we have but have never seen any that are visible as there are too many cats about. Once they hatch though we do tend to hear and then see them. The birds around here are also just starting to build nests as they are gathering materials. I suspect that like most things in the garden we are about a month behind what you southerners are seeing at the moment.
today it was to late to take pics. they already left the nest. but now they all sitting in our hedge but unfortunately for us the hedge is to massive to see anything. you can only hear the chaos and and fluttering inside.