Summary

  • Status in VT: Decreased by 32% (79 to 54 blocks). Greatest decrease in Vermont Valley.
  • Data from other research: No additional data for VT.
  • Conservation status: State rank S3B; S5N; SGCN-H; SSC
  • Other atlases: MD: -31%; NY: -34%; ON: -22%; PA: -65%
  • VT’s role in North American range: VT is within the core of the range.
  • Causes of change since first Atlas: Habitat loss and increased disturbance levels from shoreline development; coastal erosion; filling of wetlands; hunting; possible competition with Mallards.
  • Management/Monitoring recommendations:Close monitoring of annual harvest; year-round population monitoring.

First Vermont Breeding Bird Atlas (1976-1981)

Species Account

Second Vermont Breeding Bird Atlas (2003 – 2007)

American Black Duck Map 1American Black Duck Table 1American Black Duck Table 2

Change in Distribution

American Black Duck Map 2American Black Duck Table 3

Links

Vermont eBird

Encyclopedia of Life

All About Birds