Mass Audubon State of the Birds
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State of the Birds
American Robin
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Tracking This Bird In Massachusetts
Climate Vulnerability Score
Least Vulnerable
Mass Audubon Mean likelihood of occurrence (current)
0.51
Mass Audubon Mean likelihood of occurrence (2050)
0.51
Mass Audubon Absolute change in likelihood of occurrence
-0.01
U.S. Forest Service Climate Change Bird Atlas (Hadly Hi emissions scenario)a
-10.20
National Audubon Societyb
n/a
a USFS model data for Massachusetts by 2100
b National Audubon Society's Climate Change Atlas was completed on a continental scale.
Mass Audubon indicates least vulnerable to climate change. USFS indicates decline. Results not presented by National Audubon.
Breeding Bird Atlas

Atlas I Blocks
929
Atlas II Blocks
1012
Percent of state occupied - Atlas I
96
Percent of state occupied - Atlas II
98
Percent change
102
Breeding Bird Survey

Annual trend 1966-2010
-1%
P-value
significant, declining
Number of routes
27
Recent trend 2000-2010
-0.8%
Christmas Bird Count

Trend (1963-2008)
9.3
Significantly different than zero
yes
Trend (1963-1979)
5.3
Significantly different than zero
no
Trend (1979-2008)
13.6
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
Forest, Shrubland, Urban and Suburban
Wintering
Shrubland, Urban and Suburban