
Common Murre, also known as Common Guillemot or Murre
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Charadriiformes, Family: Alcidae, Genus: Uria, Species: U. aalge
Family: Alcidae (Auks, Murres, and Puffins)
- Shape
- Symmetrical vane with a gently rounded tip and an elongated, tapering overall outline.
- Size
- Approximately 3 to 4 inches long, consistent with a medium-sized body or covert feather for this alcid species.
- Rarity
- Common throughout its vast oceanic range, though locally vulnerable during breeding seasons or oil spill events.
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Description
The Common Murre is a large auk with dark brown-to-black head, back, and wings, and crisp white underparts. They possess a stout, pointed bill and short tails, standing upright on rocky ledges like tiny penguins, though they are capable of strong, whirring flight and exceptional underwater propulsion.
Colour & Pattern
Dark chocolate-brown to blackish dorsal coloration with a contrasting clean white edge or margin along one side, characteristic of upperpart contour feathers in alcids.
Barb Structure
Tightly interlocked pennaceous structure near the tip transitioning to a slightly more plumulaceous base, with intact barbs and no prominent afterfeather.
Texture & Surface
Smooth, tightly knit, and slightly glossy with a waterproof texture suited for life in marine environments.
Key Features
Distinctive dark brown-black upper coloration sharply contrasting with a bright white margin or edge, typical of coastal alcid contour feathers.
Habitat
Marine pelagic environments, rocky coastal cliffs, islands, and cold northern oceans where these birds spend the majority of their lives at sea.
Geographic Range
Circumpolar distribution in cold subarctic and temperate waters of the North Atlantic and North Pacific oceans.
Ecological Role
Important marine predator feeding on small schooling fish and invertebrates, serving as a key bio-indicator of ocean health.
Similar Species
Thick-billed Murre (Uria lomvia), Razorbill (Alca torda), and Dovekie (Alle alle), distinguished by subtle differences in size, shape, and margin coloration.
Interesting Facts
Common Murres lay a single pyriform (pear-shaped) egg directly on narrow rock ledges; the unique shape prevents the egg from rolling off the cliff in the wind.
Condition Notes
Good condition, showing minor wear along the edges but largely intact barbs and a strong rachis, suggesting it was recently molted or washed ashore.