Find a Bird
State of the Birds
Gray Catbird
|
|
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
913
Atlas II Blocks
1015
Percent of state occupied - Atlas I
94
Percent of state occupied - Atlas II
98
Percent change
103
Breeding Bird Survey

Annual trend 1966-2010
0.4%
P-value
not significant
Number of routes
27
Recent trend 2000-2010
0.6%
Christmas Bird Count

Trend (1963-2008)
4.6
Significantly different than zero
yes
Trend (1963-1979)
0.8
Significantly different than zero
no
Trend (1979-2008)
6.2
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
Shrubland, Urban and Suburban
Wintering
Shrubland, Urban and Suburban