Yellow-legged Gulls and gulls with yellow legs at Katwijk

Images of Yellow-legged Gulls Larus michahellis and of gulls of other species but also with yellow legs.

All images were taken at the sand suppletion activities on the beach of Katwijk aan Zee, The Netherlands, 19 – 20 October 2013.

Yellow-legged Gulls

Bird #1

First-calendar year, fitted with a ring from Switzerland. No new wing coverts are visible yet.

First-calendar year Yellow-legged Gull fitted with a Swiss metal clip ring which unfortunately I was not able to read. Katwijk aan Zee, The Netherlands, 19 October 2013.

Katwijk aan Zee, The Netherlands, 19 October 2013.

Bird #2

Dark individual with still some juvenile scapulars and no replaced wing coverts.

First-calendar year Yellow-legged Gull. Katwijk aan Zee, The Netherlands, 19 October 2013.

Katwijk aan Zee, The Netherlands, 19 October 2013.

Bird #3

Small individual (possibly female) with contrasting scapulars and no second-generation wing coverts yet.

First-calendar year Yellow-legged Gull. Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

Bird #4

Fourth-calendar year individual, aged by the presence of black in the primary coverts.

Fourth-calendar year type Yellow-legged Gull, aged by the amount of black in the primary coverts. Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

Fourth-calendar year type Yellow-legged Gull, aged by the amount of black in the primary coverts. Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

Fourth-calendar year type Yellow-legged Gull, aged by the amount of black in the primary coverts. Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

Fourth-calendar year type Yellow-legged Gull (left) with adult Herring Gull (right). Katwijk aan Zee, The Netherlands, 20 October 2013.

Fourth-calendar year type Yellow-legged Gull (left) with adult Herring Gull (right). Katwijk aan Zee, The Netherlands, 20 October 2013.

Bird #5

Sixth-year old individual, ringed in The Netherlands as Blue DB.

Katwijk aan Zee, The Netherlands, 20 October 2013.

Yellow-legged Gull Blue DB (center) with adult European Herring Gull (back). Katwijk aan Zee, The Netherlands, 20 October 2013.

Blue DB, looking conspicuous with its bright yellow legs. Katwijk aan Zee, The Netherlands, 20 October 2013.

Blue DB, looking conspicuous with its bright yellow legs. Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

I have seen Blue DB on several occasions during the last couple of years, for more images see my Flickr page

Scandinavian Herring Gull

Adult Scandinavian Herring Gull Larus argentatus argentatus, identified based on its slightly larger size compared to local European Herring Gulls Larus argentatus argenteus, dull-yellow legs, extensive streaking on the head and in the neck, the dark-orange to red orbital ring, large mirrors on P9 and P10, and lack of black in the outer webs of the outer primaries.

Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

Scandinavian Herring gull among smaller European Herring Gulls. Katwijk aan Zee, The Netherlands, 20 October 2013.

Scandinavian Herring gull between smaller sized and pink-legged European Herring Gulls. Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

Caspian Gull

Adult female, a strikingly small bird with dull yellow legs.

First-calendar year Yellow-legged Gull. Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

First-calendar year Yellow-legged Gull. Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

First-calendar year Yellow-legged Gull. Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

First-calendar year Yellow-legged Gull. Katwijk aan Zee, The Netherlands, 20 October 2013.

Katwijk aan Zee, The Netherlands, 20 October 2013.

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3 thoughts on “Yellow-legged Gulls and gulls with yellow legs at Katwijk

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