Kelp Gull vs Aleutian Tern

Larus dominicanus compared with Onychoprion aleuticus

Side-by-Side Comparison

Attribute Kelp Gull Aleutian Tern
Scientific Name Larus dominicanus Onychoprion aleuticus
Order Charadriiformes Charadriiformes
Family Laridae Laridae
Conservation Status Least Concern Vulnerable
Length — —
Wingspan 80.4 cm (31.7 in) 52.4 cm (20.6 in)
Weight 955.8333333333334 g (33.72 oz) 104.88 g (3.70 oz)
Diet -- --
Clutch Size 1-3 1-4
Population Trend — —

Habitat Comparison

Shared Habitats

Kelp Gull only

None

Aleutian Tern only

Conservation Status

Least Concern

Kelp Gull

Vulnerable

Aleutian Tern

About These Birds

Kelp Gull

Kelp Gull, 54–65 cm, is the dominant large gull of the Southern Hemisphere, found on all sub-Antarctic and southern temperate coasts. Jet-black back, white body, yellow bill with red spot. Omnivore; forages on rocky shores, follows fishing boats, and preys on penguin eggs. Resident and sedentary.

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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