Description

Census data for desert birds.

Format

A data frame with 43 observations on the following 2 variables.

species

a character vector

count

a numeric vector

Source

Sauer, J.R., J.E. Hines, and J. Fallon. 2003. The North American breeding bird survey, results and analysis 1966-2002. Version 2003.1. USGS Patuxent Wildlife Research Center, Laurel, MD.

References

http://www.mbr-pwrc.usgs.gov/bbs/

Examples