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Monarch caterpillar

Mass Audubon State of the Birds

Find a Bird

Double-crested Cormorant
Phalacrocorax auritus

Seemingly able to survive alongside humanity, the Double-crested Cormorant is slowly pioneering freshwater nesting areas in Massachusetts, even though the numbers in coastal colonies are showing signs of decline. Its breeding range in Massachusetts is mainly restricted to rocky coastal islands.
Conservation Status
No Action - Strong Increase

Tracking This Bird In Massachusetts

Climate Vulnerability Score

No data
Mass Audubon Mean likelihood of occurrence (current)
Mass Audubon Mean likelihood of occurrence (2050)
Mass Audubon Absolute change in likelihood of occurrence
no data
U.S. Forest Service Climate Change Bird Atlas (Hadly Hi emissions scenario)a
No data available
National Audubon Societyb
No data available
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
9
Atlas II Blocks
77
Percent of state occupied - Atlas I
1
Percent of state occupied - Atlas II
7
Percent change
1320

Breeding Bird Survey

Annual trend 1966-2010
6.6%
P-value
not significant
Number of routes
15
Recent trend 2000-2010
6%

Christmas Bird Count

Trend (1963-2008)
8.3
Significantly different than zero
yes
Trend (1963-1979)
27.3
Significantly different than zero
yes
Trend (1979-2008)
5
Significantly different than zero
yes
Christmas Bird Count Sightings By Year
Data reflects sightings per person per hour in order to account for varying numbers of yearly volunteers.

Habitat Usage

Breeding

Coastal, Rivers, Lakes, and Ponds

Wintering

Coastal