Swainson's Thrush (Catharus ustulatus)

Summary

• Status in VT: Decreased by 23% (64 to 49 blocks). Greatest decreases in Champlain Valley andTaconic Mountains.
• Data from other research: FBMP: annual decline of 4%.
• Conservation status: State rank S4B
• Other atlases: NY: -16%; PA: 130%; ON: 4%
• VT’s role in North American range: VT is at the southern edge of the range.
• Causes of change since first Atlas: Unclear; not limited by habitat availability.
• Management/Monitoring recommendations: No specific recommendations; climate change models predict upslope migration of temperature-sensitive fir forests, possibly resulting in competition with Bicknell’s Thrush.

Population Trends

First Vermont Breeding Bird Atlas (1976-1981)

Species Account

Second Vermont Breeding Bird Atlas (2003 – 2007)

Change in Distribution

Links

Vermont eBird

Encyclopedia of Life

All About Birds