Robin in a Peterborough Garden
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Sunday, November 18, 2007
© Josh Jones
This bird is the third first-winter Caspian Gull this November in the Peterborough area. Although similar to the bird from 4th, the upperparts are marked differently, and the underparts and neck are streaked more heavily. The bill pattern is also slightly different. Interestingly, just one of the three birds so far has shown a dark bill which is perhaps more typical of the species at this age, especially at this time of year.
Friday, November 16, 2007
Tuesday, November 13, 2007
Monday, November 12, 2007
Tuesday, November 06, 2007
Above: the pale underwing (a feature of the species) can be seen in the videograb above. It is not as clean as it could be, but this is probably due to the bird still being rather fresh, and it is still early on in the winter.
Above: this videograb compares the upperwings of first-winter Herring (below) and Caspian (upper left) Gulls. Note how the dark-centred tertials contrast with the coverts on Caspian, with much less contrast shown on Herring.
This image shows the bird's tail pattern - typical of a first-winter Caspian Gull, with the sharply-defined dark band contrasting with the white of the rump and rest of tail. Note how limited black marking is aside the tail band.
A profile view of this distinctive (and large) individual. Note the long-necked, elegant appearance, the small, dark eye, extensive white/paleness to the underparts, and the long, thin bill with virtually no angle at the gonys. The all-dark tertials can also be seen well in this image. This bird is more advanced than some are at time of the year.
(c) Josh Jones