Willow Flycatcher

Willow Flycatcher Empidonax traillii

Abundance map

Willow Flycatcher, Abundance map
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Data provided by eBird

Willow Flycatcher

Empidonax traillii

Abundance

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.  Learn more

Relative abundance
Breeding season
Jun 21 - Jul 13
0
0.18
7.19
Non-breeding season
Oct 26 - Apr 19
0
0.18
7.19
Pre-breeding migratory season
Apr 26 - Jun 14
0
0.18
7.19
Post-breeding migratory season
Jul 20 - Oct 19
0
0.18
7.19
Note: Seasonal ranges overlap and are stacked in the order above; view full range in season maps.
Seasons timeline
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