Dark Terns, Skimmer

American Black Tern

nonbr.

(Jul–Mar)

nonbr.

(Aug–Mar)

juvs.

(Jun–Oct)

juvs.

(Jun–Nov)

breeding

(Apr–Aug)

breeding

(Feb–Sep)

breeding

(year-round)

breeding

(Mar–Aug)

Western Bridled Tern

Sooty Tern

Common Brown Noddy

adult

1st-year

adult

Black Skimmer

American

Amazonian