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Mass Audubon State of the Birds

Find a Bird

American Oystercatcher
Haematopus palliatus

Once extirpated by eggers and market gunners, the American Oystercatcher is once again well-established on Massachusetts beaches. Its breeding range in Massachusetts is restricted to a relative-few coastal sites.
Conservation Status
Monitor to Ensure Stability

Tracking This Bird In Massachusetts

Climate Vulnerability Score

Highly Vulnerable
Mass Audubon Mean likelihood of occurrence (current)
0.11
Mass Audubon Mean likelihood of occurrence (2050)
0.09
Mass Audubon Absolute change in likelihood of occurrence
-0.03
U.S. Forest Service Climate Change Bird Atlas (Hadly Hi emissions scenario)a
n/a
National Audubon Societyb
Climate Endangered
a USFS model data for Massachusetts by 2100
b National Audubon Society's Climate Change Atlas was completed on a continental scale.

Breeding Bird Atlas

Atlas I Blocks
12
Atlas II Blocks
80
Percent of state occupied - Atlas I
1
Percent of state occupied - Atlas II
8
Percent change
627

Breeding Bird Survey

Annual trend 1966-2010
P-value
Number of routes
Recent trend 2000-2010

Christmas Bird Count

Trend (1963-2008)
0
Significantly different than zero
Trend (1963-1979)
0
Significantly different than zero
Trend (1979-2008)
0
Significantly different than zero

Habitat Usage

Breeding

Coastal

Wintering

Does not winter in Massachusetts

Climate Suitability Current and 2050