Grey Noddy vs Aleutian Tern

Anous albivittus compared with Onychoprion aleuticus

Side-by-Side Comparison

Attribute Grey Noddy Aleutian Tern
Scientific Name Anous albivittus Onychoprion aleuticus
Order Charadriiformes Charadriiformes
Family Laridae Laridae
Conservation Status Least Concern Vulnerable
Length — —
Wingspan 40.4 cm (15.9 in) 52.4 cm (20.6 in)
Weight 67.0 g (2.36 oz) 104.88 g (3.70 oz)
Diet -- --
Clutch Size 1 1-4
Population Trend — —

Habitat Comparison

Shared Habitats

Grey Noddy only

None

Aleutian Tern only

Conservation Status

Least Concern

Grey Noddy

Vulnerable

Aleutian Tern

About These Birds

Grey Noddy

Grey Noddy is a small tern-like seabird, 28–32 cm, found across the central and western Pacific on tropical oceanic islands. Pale grey overall with a white crown; nests colonially on ledges. Piscivore, plunge-dives for small fish near reef flats. Pelagic when not breeding.

Aleutian Tern

Aleutian Tern, 32–34 cm, breeds colonially in Alaska and Russian Far East, wintering in Southeast Asian waters — one of the most poorly tracked migrations among seabirds. Dark grey above, white below, black cap with white forehead. Piscivore; dives for small fish. Near Threatened.

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