Crested Auklet vs Ancient Murrelet

Aethia cristatella compared with Synthliboramphus antiquus

Side-by-Side Comparison

Attribute Crested Auklet Ancient Murrelet
Scientific Name Aethia cristatella Synthliboramphus antiquus
Order Charadriiformes Charadriiformes
Family Alcidae Alcidae
Conservation Status Least Concern Least Concern
Length
Wingspan 27.9 cm (11.0 in) 27.1 cm (10.7 in)
Weight 260.0 g (9.17 oz) 208.16666666666666 g (7.34 oz)
Diet -- --
Clutch Size 1 2
Population Trend

Habitat Comparison

Shared Habitats

Crested Auklet only

None

Ancient Murrelet only

None

Conservation Status

Least Concern

Crested Auklet

Least Concern

Ancient Murrelet

About These Birds

Crested Auklet

Crested Auklet, 23–26 cm, breeds in huge colonies on Aleutian and Bering Sea islands, forming spectacular wheeling flocks. Elaborate forward-curving crest, small orange bill. Males emit a citrus-tangerine scent from nape used in courtship. Planktivore; dives for euphausiids and copepods in icy waters.

Ancient Murrelet

Ancient Murrelet, 24–27 cm, breeds in burrows on North Pacific islands from British Columbia to Japan. Black hood, grey back, white underparts with yellow bill. Nocturnal at colonies to avoid predators. Chicks lead-march to sea within days of hatching — abandoning the nest very early. Planktivore and piscivore.

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