Blue Noddy vs Aleutian Tern

Anous ceruleus compared with Onychoprion aleuticus

Side-by-Side Comparison

Attribute Blue Noddy Aleutian Tern
Scientific Name Anous ceruleus Onychoprion aleuticus
Order Charadriiformes Charadriiformes
Family Laridae Laridae
Conservation Status Least Concern Vulnerable
Length
Wingspan 35.2 cm (13.9 in) 52.4 cm (20.6 in)
Weight 51.85 g (1.83 oz) 104.88 g (3.70 oz)
Diet -- --
Clutch Size 1 1-4
Population Trend

Habitat Comparison

Shared Habitats

Blue Noddy only

None

Aleutian Tern only

Conservation Status

Least Concern

Blue Noddy

Vulnerable

Aleutian Tern

About These Birds

Blue Noddy

Blue Noddy is a tiny seabird, 25–28 cm, restricted to tropical Pacific atolls including Hawaii and Tuamotu. Pale blue-grey above, whitish below, with a distinctive pale cap. Piscivore; flutters low over lagoons picking prey from the surface. Near Threatened.

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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