Common Tern at sunset 
 
Common tern is a seabird in the family Laridae. This bird has a circumpolar distribution, its four subspecies breeding in temperate and subarctic regions of Europe, Asia and North America. It is strongly migratory, wintering in coastal tropical and subtropical regions.
 
 
Facts file 
Conservation status: Least Concern (Population decreasing) Encyclopedia of Life
Mass: 120 g (Adult) Encyclopedia of Life
Rank: Species
Scientific name: Sterna hirundo
Order: Charadriiformes
Bird in flight
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Bird in flight

What is the difference between an Arctic Tern and a Common Tern? Arctic Terns are slightly smaller overall than Common Terns, with a shorter bil Read More

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