in summer dress. Black Rider and Black Guillemot. One still in full winter plumage, the other in transitional plumage (from winter to summer plumage).

The Black Guillemot has been present in the port of Oudeschild for months and is slowly changing color. Just a few more weeks and it will be beautiful black and white.

The Black Guillemot has been present in the port of Oudeschild for months and is slowly changing color. Just a few more weeks and it will be beautiful black and white.

 in 

in summerplumage. Spotted Redshank and Black Guillemot. in zomerkleed. One still in full winter plumage, the other in transitional plumage (winter to summer plumage).

The Black Guillemot has been present in the port of Oudeschild for months and is slowly changing color. Just a few more weeks and it will be beautiful black and white.

Zwarte Ruiter / Spotted Redshank Tringa erythropus, ad winter, polder Waal en Burg, Texel, 22-03-2022

Zwarte Zeekoet / Black Guillemot Cepphus grylle, haven Oudeschild, Texel, 28-01-2022 en onder dezelfde vogel twee maanden later op 28-03-2022. Below same bird two months later.