Birds of Colombia

    CHARADRIIFORMES: Laridae (Gulls, Terns and Skimmers)  
Genus: Sternula (2 species, 7 worldwide)

Least Tern
Least Tern (Sternula antillarum) Immature
Fort Lauderdale, Florida, United States  

Least Tern
Least Tern (Sternula antillarum antillarum)
Green Cay Nature Center, Delray Beach, Florida, USA
  The smallest tern, unmistakable because of its size, also has a distinctive bill.

Yellow-billed Tern
Yellow-billed Tern (Sternula superciliaris)
Leticia, Amazonas, Colombia
  Note black extending from eye to bill.

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