A Double-observer approach for estimating detection probability and abundance from avian point counts as described in Nichols et. al. (2000).
Nichols, J. D., J. E. Hines, J. R. Sauer, F. W. Fallon, J. E. Fallon, and P. J. Geglund A Double-observer Approach for Estimating Detection Probability and Abundance from Point Counts. The Auk 2000; 117(2): 393-408. PDF
View User's manual
Download Windows GUI program
R version of DOBSERV
An updated version of DOBSERV has been written in R which adds the ability to model detection probability as a function of covariates (in addition to observer and species). To install the package, type the following in the R console window:
install.packages('https://www.mbr-pwrc.usgs.gov/software/bin/dobserv_0.1.4.zip',repo=NULL)
or, for Mac or Linux, type:
install.packages('https://www.mbr-pwrc.usgs.gov/software/bin/dobserv_0.1.4.tar.gz',repo=N…)
To manually download...
Windows binary:dobserv.zip
Mac/Linux source:dobserv.tar.gz
