A few days ago young Dante found a 2nd winter Caspian Gull at Lyle Park. The first of a bunch of new-in Casps to the area recently. Fast forward to this morning, I got to Thames barrier park first thing and as soon as the bread was out the bag a huge 2nd winter Caspian Gull flew very close to where I was throwing from. I assumed it was the same bird as it flew towards the 02. After an hour or so between there and Lyle park (and 3 first winter Casps, none new i think) we headed over the river where Dante picked it up loafing on the beach.
As the tide was coming in and the birds were very soon to go off on their own accord, we hopped the fence and viewed the bird from ground level. A nice change from the elevated view at O2. Its an enormous Bird and fairly square headed.
Below – P10 showing a faint Mirror, Not so visible in flight unfortunately.
Below – a well built 2cy Yellow Legged gull. As we left i’m pretty sure this bird flew over us. Dante also may have had the same bird earlier in the day
As the tide came in we made a move to Beckton Sewerage works. Yesterday we’d seen a first winter Caspian on one of the roofs near the plant, today however gulls were pretty thin on the ground but I picked out this Tristis Chiffchaff was amongst around 20 collybita chiffs feeding along the outflow channel. Photos were taken into the dying light and through a chain wire fence but bins dealt with that well enough to see the buff (not yellow) supercillium, rusty ear coverts, buff/white underparts, olive green and yellow tones exclusively present in the Remiges and Retrices, faint wing bar and very black legs.
I thought I heard it a few times whilst scanning the mobile group of birds but not well enough to be happy. After about 15 minutes I heard it clearly call exactly as it should. Apparently Local Paul Hawkins has seen it also so hopefully it will stick around. I was lucky enough to find a bird early spring 2016 at the waterworks that was in full song and performed nicely for most people who looked for it over a couple of weeks.