Yellow-legged Gulls – 20131008

Yellow-legged Gulls Larus michahellis observed at the waste dump of Barneveld.

4th-calendar year type with Swiss ring

Gull of the day was this fourth-calendar year type individual (aged on the dark markings on the primary coverts). It is fitted with a Swiss clip ring with code Helvetia M013922, the first ring of this type that I have been able to read.

4th-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands. 8 October 2013.

4th-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands. 8 October 2013.

4th-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands. 8 October 2013.

4th-calendar year Yellow-legged Gull. P10 is still growing. Also note the small black mark on the outer web of P4. Barneveld waste dump, The Netherlands. 8 October 2013.

4th-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands. 8 October 2013.

4th-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands. 8 October 2013.

4th-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands. 8 October 2013.

4th-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands. 8 October 2013.

4th-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands. 8 October 2013.

4th-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands. 8 October 2013.

Adults

At least 4 different individuals were present. Compare the different primary patterns in each individual.

Bird #1

Adult Yellow-legged Gulls (right and center). Barneveld waste dump, The Netherlands, 8 October 2013.

Adult Yellow-legged Gulls (right and center). Barneveld waste dump, The Netherlands, 8 October 2013.

Bird #2

Adult Yellow-legged Gull. Barneveld waste dump, The Netherlands, 8 October 2013.

Adult Yellow-legged Gull. Barneveld waste dump, The Netherlands, 8 October 2013.

Adult Yellow-legged Gull. Barneveld waste dump, The Netherlands, 8 October 2013.

Adult Yellow-legged Gull. Barneveld waste dump, The Netherlands, 8 October 2013.

Adult Yellow-legged Gull. Barneveld waste dump, The Netherlands, 8 October 2013.

Adult Yellow-legged Gull. Barneveld waste dump, The Netherlands, 8 October 2013.

Adult Yellow-legged Gull. Note the reduced amount of black on the outer webs of the outer primaries and the small black mark on the outer web of P4. Barneveld waste dump, The Netherlands, 8 October 2013.

Adult Yellow-legged Gull. Note the reduced amount of black on the outer webs of the outer primaries and the small black mark on the outer web of P4. Barneveld waste dump, The Netherlands, 8 October 2013.

Bird #3

Adult Yellow-legged Gull among adult Lesser Black-backed Gulls (far right and far left) and adult European Herring Gulls. Barneveld waste dump, The Netherlands, 8 October 2013.

Adult Yellow-legged Gull among adult Lesser Black-backed Gulls (far right and far left) and adult European Herring Gulls. Barneveld waste dump, The Netherlands, 8 October 2013.

Bird #4

Adult Yellow-legged Gull. Barneveld waste dump, The Netherlands, 8 October 2013.

Adult Yellow-legged Gull. Barneveld waste dump, The Netherlands, 8 October 2013.

First-calendar year

One of 2 individuals present.

1st-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands, 8 October 2013.

1st-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands, 8 October 2013.

1st-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands, 8 October 2013.

1st-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands, 8 October 2013.

1st-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands, 8 October 2013.

1st-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands, 8 October 2013.

1st-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands, 8 October 2013.

1st-calendar year Yellow-legged Gull. Barneveld waste dump, The Netherlands, 8 October 2013.

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