The Flickr Cepphusgrylle Image Generatr

Gryllteiste (Cepphus grylle)
(c) Monika Podgorski

Black guillemot Cepphus grylle, adult perched in seawall, Oban, Scotland, UK, April

Black guillemot Cepphus grylle, adults swimming, Oban, Scotland, UK, April

Black guillemot Cepphus grylle, adult swimming & calling, Oban, Scotland, UK, April

Black guillemot Cepphus grylle, adults perched in seawall, Oban, Scotland, UK, April

Black guillemot Cepphus grylle, adults swimming, Oban, Scotland, UK, April

Black guillemot Cepphus grylle, adult perched in seawall, Oban, Scotland, UK, April

Black guillemot Cepphus grylle, adults perched in seawall, Oban, Scotland, UK, April

Black guillemot Cepphus grylle, adult perched in seawall, Oban, Scotland, UK, April

Black guillemot Cepphus grylle, adult swimming, Oban, Scotland, UK, April

Black guillemot Cepphus grylle, adult flock in harbour, Oban, Scotland, UK, April

Black guillemot Cepphus grylle, adult swimming, Oban, Scotland, UK, April

Black guillemot Cepphus grylle, adult flock in harbour, Oban, Scotland, UK, April

Black Guillemot (Cepphus grylle), St Bees Head, Cumbria

Ebird checklist:
ebird.org/checklist/S231940630

Small seabird of coastal areas of the North Atlantic and Alaska. Breeding plumage is entirely black with bold white patch on wings and bright red legs. Changes dramatically in winter to whitish overall with some dusky markings on body and black wingtips. Often found in shallower coastal waters including from shore. Dives to hunt for fish and invertebrates. Nests in crevice or burrow in a cliff or around large rocks.

Source: Ebird
ebird.org/species/blkgui

Black Guillemots
Cepphus grylle

I took this shot from my kayak

Riskilät
Tobisgrisslarna

Black Guillemots
Cepphus Grylle

I took this shot from my kayak

Riskilät
Tobisgrisslarna

Cepphus grylle

I took this shot from my kayak

Riskilät
Tobisgrisslarna

Shorebirds of Ireland, Freshwater Birds of Ireland and The Birds of Ireland: A Field Guide 2nd Edition with Jim Wilson.
www.markcarmodyphotography.com

The Black Guillemot or Tystie (Cepphus grylle) is a medium-sized alcid.

Adult birds have black bodies with a white wing patch, a thin dark bill, and red legs and feet. They show white wing linings in flight. In winter, the upperparts are pale grey and the underparts are white. The wings remain black with the large white patch on the inner wing.

Their breeding habitat is rocky shores, cliffs and islands on northern Atlantic coasts in eastern North America as far south as Maine, and in western Europe as far south as Ireland.They are one of the few birds to breed on Surtsey, Iceland a new volcanic island. In the UK it is a fairly common breeding bird in western and northern Scotland and Ireland. In the rest of Great Britain they only breed at St. Bees Head in Cumbria, the Isle of Man and on east Anglesey in north Wales. Some birds breed in Alaska where their range overlaps with the similar Pigeon Guillemot.

These birds often overwinter in their breeding areas, moving to open waters if necessary, but usually not migrating very far south.

They dive for food from the surface, swimming underwater. They mainly eat fish and crustaceans, also some mollusks, insects and plant material. (wikipedia)

This was an adult winter bird at the mouth of Dun Laoghaire harbour earlier in the Spring of 2025.