CreatureData

Arctic tern vs Common tern

The common tern is heavier: 129.2 g against 110 g for the Arctic tern, about 17% more.

Arctic tern (Sterna paradisaea)
Arctic tern LCLeast Concern
Photo: Jamumiwa · CC BY-SA 4.0 · Wikimedia Commons
Common tern (Sterna hirundo)
Common tern LCLeast Concern
Photo: Alexis Lours · CC BY 4.0 · Wikimedia Commons

What is the difference between a Arctic tern and a common tern?

Each point below is worked out from a pair of recorded values.

  • The common tern is heavier: 129.2 g against 110 g for the Arctic tern, about 17% more.
  • The Arctic tern is longer-lived: 34 years against 33 years for the common tern, about 3% longer.
  • Both belong to the genus Sterna, so they are close relatives.
  • Both are listed as Least Concern on the IUCN Red List.

Side by side

Arctic ternCommon tern
Scientific nameSterna paradisaeaSterna hirundo
FamilyLaridaeLaridae
OrderCharadriiformesCharadriiformes
Weight110 g – 117 g124 g – 129.2 g
Length33 cm – 36 cmNot recorded
Lifespan34 years33 years
Main foodNot recordedNot recorded
Habitatcoastalmarine
Conservation statusLeast ConcernLeast Concern
Countries recordedNot recordedNot recorded

A scale drawing needs a recorded length for both animals; only weights are on record for this pair.

Full record: Arctic ternFull record: Common ternCompare other animals