Sterne naine vs Sterne pierregarin

The Little Tern is smaller and more delicate than the Common Tern, with a shorter bill and tail. In flight, the Little Tern's wings appear more angular compared to the longer, more graceful wings of the Common Tern.

1. Size: Little Tern is smaller. 2. Bill and Tail: Little Tern has a shorter bill and tail. 3. Wing Shape: Little Tern's wings are more angular in flight compared to the Common Tern's longer wings.

The Little Tern is notably smaller than the Common Tern.

The Little Tern has a shorter bill and tail, while the Common Tern is more streamlined with longer wings.