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Tree Swallow

Tree Swallow

Tachycineta bicolor

Abundance map

Tree Swallow, Abundance map
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Data provided by eBird

Tree Swallow

Tachycineta bicolor

Abundance

This map depicts the seasonally-averaged estimated relative abundance, defined as the expected count on a one-hour, one kilometer eBird Traveling Count conducted at the ideal time of day for detection of that species in a region.  Learn more

Relative abundance
birds per km/hr
Breeding season
May 24 - Jun 21
0.18
2.48
21,843.43
Non-breeding season
Dec 7 - Jan 18
0.18
2.48
21,843.43
Pre-breeding migratory season
Jan 25 - May 17
0.18
2.48
21,843.43
Post-breeding migratory season
Jun 28 - Nov 30
0.18
2.48
21,843.43
Note: Seasonal ranges overlap and are stacked in the order above; view full range in season maps.
Seasons timeline
Learn more