Summary

  • Status in VT: Decreased by 16% (170 to 142 blocks). Greatest decrease in Northeastern Highlands.
  • Data from other research: No additional data for VT.
  • Conservation status: State rank S5B
  • Other atlases: NY: -7%; PA: <1%; MD: <1%; ON: -7%
  • VT’s role in North American range: VT is within the core of the range.
  • Causes of change since first Atlas: Continued decline in agricultural activities combined with regrowth of forests.
  • Management/Monitoring recommendations: No specific recommendations.

Population Trends

Brown-headed Cowbird graph

First Vermont Breeding Bird Atlas (1976-1981)

Species Account

Second Vermont Breeding Bird Atlas (2003 – 2007)

Brown-headed Cowbird Map 1 Brown-headed Cowbird Table 1 Brown-headed Cowbird Table 2

Change in Distribution

mapkey Brown-headed Cowbird Map 2 Brown-headed Cowbird Table 3

Links

Vermont eBird

Encyclopedia of Life

All About Birds