Caspian Tern

Caspian Tern Hydroprogne caspia

Abundance map: Non-breeding

Caspian Tern, Abundance map: Non-breeding
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Data provided by eBird

Caspian Tern

Hydroprogne caspia

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
0
1.1
669.59
Season date range
Nov 23 - Mar 1 Learn more