First visit yesterday to the barrage since lockdown started. Managed a shot of a pair of House Martins doing some refurbishment on a house in Penarth Marina. By the water taxi embarcation jetty a Mute Swan with 6 cygnets. At the Cardiff end of the barrage a Common Whitethroat was singing at the top of a tree and a rather tatty looking male Blackbird was on one of the old mooring posts. A Cetti’s Warbler was singing just before the old Roath Dock. Plenty of Sand Martins nesting in the holes of Roath Dock. No sign of any Swifts at all.