June is probably the most unproductive month at the patch but following a string of Mediterranean Gull records over the last few days I decided to give it a go. The two Portuguese nasal-saddled Tufted ducks were still on the basin and a pair of Oystercatchers were feeding on the Millennium Dome mudflats; two pairs of Common Terns were incubating on the rafts and a pair of Song Thrushes were commuting between the copse and the eastern scrub. Several Reed Warblers and a Blackcap were still in song and two pairs of Sand Martins are now feeding young. I didn't manage to find a Mediterranean Gull but one was observed flying upstream after I left the patch, but I did find a Common Swift flying east, never an easy bird here; this was only the 2nd record in a week that saw the RSPB, East London Birders Forum and Thames 21 on site from 10 a m to 4 p m daily.
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