Bonaparte's Gull

Bonaparte's Gull Chroicocephalus philadelphia

Abundance map: Pre-breeding migration

Bonaparte's Gull, Abundance map: Pre-breeding migration
The Cornell Lab logo
Data provided by eBird

Bonaparte's Gull

Chroicocephalus philadelphia

Abundance: Pre-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 pre-breeding migration season.  Learn more

Relative abundance
Pre-breeding migratory season
0
1.55
617.37
Season date range
Feb 15 - May 31 Learn more