Arctic tern

US /ˈɑːrk.tɪk tɜːrn/
UK /ˈɑːrk.tɪk tɜːrn/
"Arctic tern" picture
1.

sterna artica

a seabird, Sterna paradisaea, that breeds in the Arctic and migrates to the Antarctic, having the longest migratory route of any bird

:
The Arctic tern has the longest migratory route of any bird.
La sterna artica ha la rotta migratoria più lunga di qualsiasi uccello.
We spotted an Arctic tern during our expedition to the polar regions.
Abbiamo avvistato una sterna artica durante la nostra spedizione nelle regioni polari.