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Mass Audubon State of the Birds

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Northern Saw-whet Owl
Aegolius acadicus

A reclusive and uncommon permanent resident in Massachusetts, the Northern Saw-whet Owl has seemingly adjusted well to the proliferation of wooded suburbs. Though its breeding range in Massachusetts is restricted, it is surprisingly widespread.
Conservation Status
No Action - Strong Increase

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
19
Atlas II Blocks
70
Percent of state occupied - Atlas I
1
Percent of state occupied - Atlas II
6
Percent change
284

Breeding Bird Survey

Annual trend 1966-2010
P-value
Number of routes
Recent trend 2000-2010

Christmas Bird Count

Trend (1963-2008)
6
Significantly different than zero
yes
Trend (1963-1979)
3
Significantly different than zero
no
Trend (1979-2008)
6
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

Forest, Forested Wetland

Wintering

Forest, Forested Wetland