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Side-by-Side Comparison

Attribute	Spectacled Guillemot	Craveri's Murrelet
Scientific Name	Cepphus carbo	Synthliboramphus craveri
Order	Charadriiformes	Charadriiformes
Family	Alcidae	Alcidae
Conservation Status	Least Concern	Vulnerable
Length	—	—
Wingspan	38.4 cm (15.1 in)	23.9 cm (9.4 in)
Weight	480.0 g (16.93 oz)	150.5 g (5.31 oz)
Diet	--	--
Clutch Size	1-2	2
Population Trend	—	—

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Habitat Comparison

Shared Habitats

🏖️ Coastal

Spectacled Guillemot only

None

Craveri's Murrelet only

None

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Conservation Status

Least Concern

Spectacled Guillemot

Vulnerable

Craveri'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.

Craveri's Murrelet

Craveri's Murrelet, 21–23 cm, breeds on Gulf of California islands, dispersing into the Pacific after breeding. Darkest Synthliboramphus murrelet; less white on face than Scripps's. Near Threatened; small population threatened by introduced predators on nesting islands and bycatch in gill nets.

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