Least Tern

Subspecies (3)

• Sternula antillarum antillarum

  breeds coasts of eastern USA from Maine to Honduras, Caribbean, and the Guianas; winters to northern Brazil

• Sternula antillarum athalassos

  breeds northern Great Plains from Montana and North Dakota southward to New Mexico, Louisiana, and Texas; winters to northern Brazil

• Sternula antillarum browni

  breeds coasts of central California southward to Baja California and Oaxaca (southwestern Mexico); winters to Central America