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Black-throated Blue Warbler
Dendroica caerulescens

The fairly widespread Black-throated Blue Warbler breeds in many upland forests in central and western Massachusetts, especially where dense thickets of Mountain Laurel abound; however, its precise abundance in these habitats has proven difficult to ascertain with certainty.
Conservation Status
No Action: Likely Increase

Tracking This Bird In Massachusetts

Climate Vulnerability Score

Highly Vulnerable
Mass Audubon Mean likelihood of occurrence (current)
0.47
Mass Audubon Mean likelihood of occurrence (2050)
0.10
Mass Audubon Absolute change in likelihood of occurrence
-0.37
U.S. Forest Service Climate Change Bird Atlas (Hadly Hi emissions scenario)a
-5.50
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
267
Atlas II Blocks
422
Percent of state occupied - Atlas I
28
Percent of state occupied - Atlas II
41
Percent change
126

Breeding Bird Survey

Annual trend 1966-2010
-0.1%
P-value
not significant
Number of routes
12
Recent trend 2000-2010
0.1%

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

Forest

Wintering

Does not winter in Massachusetts

Climate Suitability Current and 2050