Saturday, 20 December 2014

Iceland Gull Again

Herring Gull numbers are building up and just as in late December 2013 there are at least two thousand visiting Shawell at present. The throng of gulls at the tipping area is a wonder to see, but it is not a great place to practice your identification skills, as the gulls are constantly on the move. A first year gull with a soft brown overall colour and brownish tertials and primaries grabbed my attention for about two seconds before it was sucked up into the mass of gulls. Anyway whatever my first impressions were I never saw that gull again. On the periphery of the tip I did see a smart first-winter Yellow-legged Gull that had solid brown coverts and tertials that contrasted nicely with its grey saddle. I had not seen a first-winter for a while, so it was good to see another.

There was no sign of the Iceland Gull that I found on Wednesday at the tip, so it was time to move to the A5 Lagoons and hope for better luck. It didn't take long to find a smart fourth-winter Caspian Gull - a new one.

Fourth-winter Caspian Gull

This Caspian Gull was a real classic: a super slender long bill, a small head with a pair of dark eyes and an almost fully adult set of primaries. It hung about on the largest lagoon for over an hour, which gave me plenty of time to study it.

Fourth-winter Caspian Gull

At dead on 11:00 something, probably a Common Buzzard, caused the gulls to panic and amongst the first group to settle back down on the water was the third-winter Iceland Gull. It must have been hiding on the other lagoon.

Third-winter Iceland Gull

Almost as soon as it arrived it flew off again. It then returned briefly at about 11:30 and flew off again only to return about 15 minutes later. This time it stayed for about an hour.

Third-winter Iceland Gull
Third-winter Iceland Gull

The light was brighter today, which made the Iceland Gull look much more ghost like. Remnants of the immature plumage were still visible on the tertials and greater coverts. The paleness of the eyes was easier to see today as well. The legs are pink, but in certain lights they look a little paler than normal for Iceland Gull.

After the Iceland Gull departed, I noticed a striking gull near the shore that proved quite challenging. It was as clean looking as the adult Yellow-legged Gulls are at present. However, its head shape was wrong and so was its primary pattern. Its head was quite small and its bill was very long. The bill was a similar shape to a Herring Gull's, but it seemed too long. Its legs were a pasty yellowy orange, not right for Yellow-legged Gull. This gull may well be a hybrid Caspian x Herring Gull, but it is difficult to be 100% certain - what do you think?




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