Visit to the gull colony of IJmuiden – 20190429

Images taken during a visit to the gull colony of IJmuiden Forteiland, the Netherlands, on April 29, 2019, as part of our research project.

Shown are European Herring Gulls, Lesser Black-backed Gulls, and a (presumed) hybrid Lesser Black-backed Gull x Yellow-legged Gull.

Click for a larger image.

European Herring Gulls

Male YBAK

Female YBAU

Male YCKP

Partner of YBAU.

Female YBAZ

Incubating eggs.

With partner YCAP.

Male YBRD and female YBUW

Lesser Black-backed Gulls

Male White N0LV

Ringed while wintering in Malaga, Spain some years ago.

Female YAUD

YAXL

Showing a mix of leucistic and sub-adult plumage each year.

See images of all years of this gull.

Female YBHH

Female YBJB

Showing black on all primaries.

See also Lesser Black-backed Gull Green YBJB primary pattern update 2019.

Female YCHC

(Presumed) Hybrid Lesser Black-backed Gull x Yellow-legged Gull

Male YAHH

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