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Mass Audubon State of the Birds

Find a Bird

Black-billed Cuckoo
Coccyzus erythropthalmus

The Black-billed Cuckoo, while superficially similar to its cousin the Yellow-billed Cuckoo, appears to be declining in Massachusetts and its breeding range in the state is somewhat restricted.
Conservation Status
Continued Action/Monitoring Needed

Tracking This Bird In Massachusetts

Climate Vulnerability Score

Highly Vulnerable
Mass Audubon Mean likelihood of occurrence (current)
0.56
Mass Audubon Mean likelihood of occurrence (2050)
0.30
Mass Audubon Absolute change in likelihood of occurrence
-0.26
U.S. Forest Service Climate Change Bird Atlas (Hadly Hi emissions scenario)a
-14.30
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
314
Atlas II Blocks
288
Percent of state occupied - Atlas I
32
Percent of state occupied - Atlas II
28
Percent change
76

Breeding Bird Survey

Annual trend 1966-2010
-1.5%
P-value
not significant
Number of routes
25
Recent trend 2000-2010
-1.5%

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

Shrubland

Wintering

Does not winter in Massachusetts

Climate Suitability Current and 2050