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Mass Audubon State of the Birds

Find a Bird

Brown Creeper
Certhia americana

The Brown Creeper has become increasingly widespread as a breeder in Massachusetts, but as regenerating fragmented forests become more typical in many areas of the state, this may not ultimately prove to be ideal habitat for the species.
Conservation Status
No Action: Likely Increase

Tracking This Bird In Massachusetts

Climate Vulnerability Score

Highly Vulnerable
Mass Audubon Mean likelihood of occurrence (current)
0.58
Mass Audubon Mean likelihood of occurrence (2050)
0.15
Mass Audubon Absolute change in likelihood of occurrence
-0.43
U.S. Forest Service Climate Change Bird Atlas (Hadly Hi emissions scenario)a
-8.50
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
314
Atlas II Blocks
539
Percent of state occupied - Atlas I
32
Percent of state occupied - Atlas II
52
Percent change
143

Breeding Bird Survey

Annual trend 1966-2010
-0.4%
P-value
not significant
Number of routes
22
Recent trend 2000-2010
-0.8%

Christmas Bird Count

Trend (1963-2008)
-0.7
Significantly different than zero
no
Trend (1963-1979)
1
Significantly different than zero
no
Trend (1979-2008)
-2.2
Significantly different than zero
yes

Habitat Usage

Breeding

Forest, Forested Wetland

Wintering

Forest, Forested Wetland

Climate Suitability Current and 2050