Visit to the gull colony of IJmuiden – 20190506

Images taken during a visit to the gull colony of IJmuiden Forteiland, the Netherlands, on May 6, 2019, as part of our research project.

Shown are European Herring Gulls and Lesser Black-backed Gulls.

Click for a larger image.

European Herring Gulls

A breeding adult.

Male YACB

Now in its 20th calendar year.

Note the lack of black on the inner web of P8 in the left wing, a feature that it shows each year.

Male YBBZ

Male YBMD with female YCPZ

Male YBRD with female YBUW

Female YBUF

Male YCDR

Male YCHP

Female YCKD

Female YCNA

Lesser Black-backed Gulls

YBXJ

Fifth-calendar year with an unusual amount of black in the tail.

See also 5CY Lesser Black-backed Gull Green YBXJ with sub-adult plumage – 20190506.

Female YCBA

YCCT

Fourth-calendar year.

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