I have been watching our patch gulls quite closely recently. Some of my patch colleagues would see this as a sign of weakness or desperation, but I have actually been quite enjoying it. Partly, this is because there is so much more that can be relatively easily learned just working the Patch, and partly because I am aware there are some guys who come in from off the Patch every now and again and seem to contribute disproportionately to the interesting gull finds that we have (more on them later).
In fact, more on them now, as Jamie P and Dante S had spotted an untimely juvenile Common Gull on the Patch the other day. A day when I too had been out and about but failed to spot anything so interesting. So I went back out this weekend determined to find this bird. I failed. There were plenty, probably 100+, first winter birds, but no juveniles that I could find.
1st winter Common Gull (Larus canus)
I scanned the large gulls in case there was anything else more interesting in amongst them. There wasn’t. One gull that stood out was this young Herring Gull.
Herring Gull (Larus argentatus argenteus)
It really puzzled me. Look how pale it is and how worn the moult is on the coverts and tertials. But the moult was nowhere near developed enough on the scapulars for a 2nd winter, so I assumed it was a 1st winter bird that was weirdly pale and worn. Error! Luckily a better birder than me pointed out that this is simply a somewhat-retarded 2nd winter bird. It seems so obvious now!
An actual 1st winter Herring Gull
There are other reasons to scan gulls, of course. Ringed gull recoveries can yield interesting histories, and a great time to see rings on gulls is when our ponds are iced over. Our winter resident ‘2LBA’ Black-headed Gull was skating about on Jubilee Pond.
Black-headed Gull (Chroicocephalus ridibundus)
I have photographed this bird on at least five separate occasions now over the last year and it has been around for almost a year longer than that; appearing as a first winter bird in March 2016 having been ringed as a chick (pullus) in June 2015 in Fishers Green only ten miles North of the Patch as the gull flies.
I have bothered to record six colour-ringed gulls on the Patch in the three and a bit years I’ve been birding/living here. The longest distance traveller so far was Green ‘J8M4’, a Common Gull I saw in September last year who was ringed six hundred miles North East of the Patch in Rogaland, Norway.
Aside from ‘2LBA’, yesterday, I also clocked Blue ‘JMP’ on ‘Shoulder of Mutton’ pond, an eight-and-a-half year-old Lesser Black-backed Gull ringed in a tip in Gloucester 100 miles West-North-West of the Patch back in May 2010 just as David Cameron was walking into 10 Downing Street for the first time. Gosh – that seems like a long time ago!
Lesser Black-backed Gull (Larus fuscus graellsii)
There is one more ringed gull I want to mention. Not a gull with a leg ring, but rather a Ring-billed Gull, the American vagrant that I last saw on a beach in Mexico. The last time one was found in London was nine years ago, I believe! The last time that was… until today! The outstanding young birder, Dante Shepherd (mentioned above), found one at Thames Barrier Park, just five miles South as the gull flies. It is rather longer in the car, but I jumped in, nonetheless, as soon as I heard the news.
In what reminded me of the run-around the Bonaparte’s Gull gave me last year, as I was pulling up at the park, WhatsApp informed me that the gull had just flown East. Jamie and Dante kindly pointed me in the direction of a very distant flock of mixed gulls down-river.
I dutifully scanned through as many as I could, and saw birds (that plural should tell you how I was clutching at straws) that looked possible, but, the truth was, they were simply too far away for me to get enough on them.
The white smear on the mud is where the Ring-billed Gull might have been
For a short few minutes, the bright golden light of early evening shone on the flock like a sign from the Great Gull in the sky, and I stood peering through my scope as snow flakes fell on me.
Hopefully the Ring-billed Gull will stay around for a bit. Maybe it will follow its closely related Common Gulls and come up to Wanstead – which would be a Patch first. We can but dream… of gulls.
Thames Barrier sunset at low tide