Common Tern

Common Tern Sterna hirundo

Abundance map: Non-breeding

Common Tern, Abundance map: Non-breeding
The Cornell Lab logo
Data provided by eBird

Common Tern

Sterna hirundo

Abundance: Non-breeding

This map depicts the seasonally-averaged estimated relative abundance, defined as the expected count on an eBird Traveling Count starting at the optimal time of day with the optimal search duration and distance that maximizes detection of that species in a region, averaged across the non-breeding season.  Learn more

Relative abundance
Non-breeding season
Season date range
Dec 14 - Mar 15 Learn more