Summary
- Status in VT: Decreased by 48% (122 to 63 blocks). Greatest decrease in Northern Vermont Piedmont.
- Data from other research: No additional data for VT.
- Conservation status: State rank S4B
- Other atlases: NY: -12%; PA: -13%; ON: -50%
- VT’s role in North American range: VT is within the core of the range.
- Causes of change since first Atlas: Nest competition with House Sparrow (?); reduced insect prey populations associated with decline in farm acreage; destruction of nests in human structures.
- Management/Monitoring recommendations: Outreach and education highlighting benefits of Cliff Swallow colonies such as insect control.
Population Trends
First Vermont Breeding Bird Atlas (1976-1981)
Second Vermont Breeding Bird Atlas (2003 – 2007)
Change in Distribution
