Summary
- Status in VT: Decreased by 71% (7 to 2 blocks). Decrease occurred in Champlain Valley.
- Data from other research: Missisquoi NWR: 66 pairs in 2008, 121 pairs in 2009.
- Conservation status: State rank S1B; SGCN-H; E
- Other atlases: NY: -40%; PA: -27%; ON: disappeared from Niagara Peninsula and declined by up to 50% in other regions.
- VT’s role in North American range: VT is on the extreme southeastern edge of the range.
- Causes of change since first Atlas: Reduced habitat suitability resulting from invasion of phragmites and/or purple loosestrife.
- Management/Monitoring recommendations:Protection of known breeding colonies from extreme water fluctuations during the breeding season, invasive species, and boating activity, provision of artificial nest platforms.
First Vermont Breeding Bird Atlas (1976-1981)
Second Vermont Breeding Bird Atlas (2003 – 2007)
Change in Distribution
