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)

Species Account

Second Vermont Breeding Bird Atlas (2003 – 2007)

Black Tern Map 1 Black Tern Table 1 Black Tern Table 2

Change in Distribution

mapkey Black Tern Map 2 Black Tern Table 3

Links

Vermont eBird

Encyclopedia of Life

All About Birds