Black Oystercatcher

Black Oystercatcher Haematopus bachmani

Abundance map

Black Oystercatcher, Abundance map
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Data provided by eBird

Black Oystercatcher

Haematopus bachmani

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
Year-round
0.01
1.37
21.61
Breeding season
May 31 - Aug 3
0.01
1.37
21.61
Non-breeding season
Oct 26 - Feb 22
0.01
1.37
21.61
Pre-breeding migratory season
Mar 1 - May 24
0.01
1.37
21.61
Post-breeding migratory season
Aug 10 - Oct 19
0.01
1.37
21.61
Note: Seasonal ranges overlap and are stacked in the order above; view full range in season maps.
Seasons timeline
Learn more