2nd Winter Caspian and Tristis Chiff

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.

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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.

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Below – P10 showing a faint Mirror, Not so visible in flight unfortunately.

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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

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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.

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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.

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