Willow Flycatcher

Willow Flycatcher Empidonax traillii

Abundance map: Non-breeding

Willow Flycatcher, Abundance map: Non-breeding
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Data provided by eBird

Willow Flycatcher

Empidonax traillii

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
Oct 26 - Apr 19 Learn more