State of the Birds

White-throated Sparrow
Zonotrichia albicollis

In Massachusetts the White-throated Sparrow specializes in nesting in early-successional forest gaps--habitats which are becoming increasingly difficult to find in this era of fire suppression and reduced logging activity. Despite its restricted breeding range in Massachusetts, the White-throat is a very common spring and fall migrant, and a common winter visitor in the state.
Conservation Status
Conservation Action Urgent

Tracking This Bird In Massachusetts

Climate Vulnerability Score
Highly Vulnerable
Mass Audubon Mean likelihood of occurrence (current)
0.40
Mass Audubon Mean likelihood of occurrence (2050)
0.21
Mass Audubon Absolute change in likelihood of occurrence
-0.19
U.S. Forest Service Climate Change Bird Atlas (Hadly Hi emissions scenario)a
-14.80
National Audubon Societyb
Climate Threatened
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
336
Atlas II Blocks
166
Percent of state occupied - Atlas I
35
Percent of state occupied - Atlas II
16
Percent change
40
Breeding Bird Survey
Annual trend 1966-2010
-6.9%
P-value
significant, declining
Number of routes
19
Recent trend 2000-2010
-7%
Christmas Bird Count
Trend (1963-2008)
2.3
Significantly different than zero
yes
Trend (1963-1979)
6.1
Significantly different than zero
yes
Trend (1979-2008)
3.8
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
Wintering
Shrubland, Urban and Suburban

Additional Information

Climate Suitability Current and 2050