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Tern - Wikipedia
Common Tern Identification - All About Birds
Tern Definition & Meaning - Merriam-Webster
Common Tern Overview, All About Birds, Cornell Lab of …
Common Tern Bird Facts (Sterna hirundo) | Birdfact
Tern | Migration, Diet & Habitat | Britannica
Common Tern Life History - All About Birds
Arctic tern, facts and photos - National Geographic
The Big Tern Cheat Sheet: How to ID Four Common Species
Common Terns | Audubon Seabird Institute