State of the Birds

Purple Martin
Progne subis

In much of North America the highly colonial Purple Martin breeds only where humans have erected structures for its use. Only a very restricted distribution of such sites exist in Massachusetts, rendering the species very vulnerable to extinction should even a few of these colonies fail.
Conservation Status
Conservation Action Urgent

Tracking This Bird In Massachusetts

Climate Vulnerability Score
Least Vulnerable
Mass Audubon Mean likelihood of occurrence (current)
0.44
Mass Audubon Mean likelihood of occurrence (2050)
0.49
Mass Audubon Absolute change in likelihood of occurrence
0.05
U.S. Forest Service Climate Change Bird Atlas (Hadly Hi emissions scenario)a
31.10
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.
Breeding Bird Atlas
Atlas I Blocks
33
Atlas II Blocks
20
Percent of state occupied - Atlas I
3
Percent of state occupied - Atlas II
2
Percent change
56
Breeding Bird Survey
Annual trend 1966-2010
4.3%
P-value
significant, increasing
Number of routes
9
Recent trend 2000-2010
4.8%
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
Rivers, Lakes, and Ponds, Urban and Suburban
Wintering
Does not winter in Massachusetts

Additional Information

Climate Suitability Current and 2050