Black Swift

Black Swift Cypseloides niger

Abundance map

Black Swift, Abundance map
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Data provided by eBird

Black Swift

Cypseloides niger

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 14 - Jul 20
0
0.34
16.24
Non-breeding season
Not shown
0
0.34
16.24
Pre-breeding migratory season
Feb 15 - Jun 7
0
0.34
16.24
Post-breeding migratory season
Not shown
0
0.34
16.24
Note: Seasonal ranges overlap and are stacked in the order above; view full range in season maps.
Seasons timeline
Learn more
Trends
  • In progress. Learn more
  • Trends map: Non-breeding
  • Trends map: Breeding
Range