Philadelphia Vireo (Vireo philadelphicus)

Summary

• Status in VT: Decreased by 89% (19 to 2 blocks). Greatest decreases in Northern Vermont Piedmont, Southern Vermont Piedmont, and Southern Green Mountains.
• Data from other research: No additional data for VT.
• Conservation status: State rank S1B
• Other atlases: NY, ON: pronounced increases
• VT’s role in North American range: VT is on the southern edge of the range.
• Causes of change since first Atlas: Unclear, given increases in nearby states and in BBS data; early- to mid-successional species negatively affected by forest maturation (?).
• Management/Monitoring recommendations:Targeted surveys to determine true population status.

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