Black-crowned Night-Heron

Black-crowned Night-Heron Nycticorax nycticorax

Abundance map: Post-breeding migration

Black-crowned Night-Heron, Abundance map: Post-breeding migration
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Data provided by eBird

Black-crowned Night-Heron

Nycticorax nycticorax

Abundance: Post-breeding migration

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 post-breeding migration season.  Learn more

Relative abundance
Post-breeding migratory season
Season date range
Aug 31 - Nov 23 Learn more