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Projects Vermont Breeding Bird Atlas American Black Duck

American Black Duck (Anas rubripes)

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)

Change in Distribution

Links

Encyclopedia of Life

All About Birds