Least Auklet vs Rhinoceros Auklet

Aethia pusilla verglichen mit Cerorhinca monocerata

Side-by-Side Comparison

Merkmal Least Auklet Rhinoceros Auklet
Wissenschaftlicher Name Aethia pusilla Cerorhinca monocerata
Ordnung Charadriiformes Charadriiformes
Familie Alcidae Alcidae
Erhaltungsstatus Least Concern Least Concern
Länge — —
Flügelspannweite 18,9 cm (7.4 in) 35,8 cm (14.1 in)
Gewicht 84,33333333333333 g (2.97 oz) 503,75 g (17.77 oz)
Ernährung -- --
Gelegegröße 1 1
Population Trend — —

Habitat Comparison

Gemeinsame Lebensräume

Least Auklet only

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Rhinoceros Auklet only

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Erhaltungsstatus

Least Concern

Least Auklet

Least Concern

Rhinoceros Auklet

About These Birds

Least Auklet

Least Auklet, 15–16 cm, is the smallest auk, breeding in immense colonies (millions) on rocky Aleutian and Bering Sea islands. Dark above, streaked white below; a tiny white plume above the eye. Planktivore; sieves copepods and euphausiids at sea. Makes loud buzzing display choruses at colony.

Rhinoceros Auklet

Rhinoceros Auklet, 37–41 cm, breeds colonially in burrows on North Pacific islands from California to Japan. Adults develop a prominent horn at bill base in breeding plumage plus white facial plumes. Nocturnal at colonies. Piscivore; dives up to 50 m for sand lance and herring. Winters at sea.

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