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Side-by-Side Comparison

Attribute	Spectacled Guillemot	Scripps's Murrelet
Scientific Name	Cepphus carbo	Synthliboramphus scrippsi
Order	Charadriiformes	Charadriiformes
Family	Alcidae	Alcidae
Conservation Status	Least Concern	Vulnerable
Length	—	—
Wingspan	38.4 cm (15.1 in)	24.0 cm (9.4 in)
Weight	480.0 g (16.93 oz)	175.5 g (6.19 oz)
Diet	--	--
Clutch Size	1-2	1-2
Population Trend	—	—

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Habitat Comparison

Shared Habitats

🏖️ Coastal

Spectacled Guillemot only

None

Scripps's Murrelet only

None

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Conservation Status

Least Concern

Spectacled Guillemot

Vulnerable

Scripps's Murrelet

{# ════════════════════════════════════════════════════════════════════════ Identification Tips — How to Tell Them Apart ════════════════════════════════════════════════════════════════════════ #} {# ════════════════════════════════════════════════════════════════════════ About Each Bird (Descriptions) ════════════════════════════════════════════════════════════════════════ #}

About These Birds

Spectacled Guillemot

Spectacled Guillemot, 36–38 cm, breeds on rocky coasts and sea cliffs of the western North Pacific from Kamchatka to Japan. Sooty black with white spectacle patches around the eye; red feet. Coastal diver; feeds on fish and crustaceans near rocky reefs. Sedentary; stays close to breeding coast year-round.

Scripps's Murrelet

Scripps's Murrelet, 22–24 cm, breeds in crevices on Channel Islands off southern California. White underparts contrasting with dark grey upperparts; white split extends up flanks. Nocturnal at colonies. Chicks lead-march to sea within 2 days of hatching. Piscivore; threatened by light pollution and introduced predators.

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