2012 - 2013 SOUTH DAKOTA CBC SUMMARY.

Autor: Hess, Gene K.
Předmět:
Zdroj: South Dakota Bird Notes; Jun2013, Vol. 65 Issue 2, p36-43, 8p
Abstrakt: The article focuses on the data of the South Dakota (SD) Christmas Bird Counts (CBC) in 2012, which is also referred to the National Audubon Society (NAS). It says that there are 172,188 individual bird species that are reported to NAS in 2012, wherein the species found with only one count and in all counts includes Horned Grebe, American Dipper, and European Starling. It discusses the counting process from the West to East River dated from January 5 to December 29, 2012.
Databáze: Supplemental Index