Version 2.12.12 of PRESENCE/RPresence has been uploaded to the PWRC web-server (11May2018). See:
https://www.mbr-pwrc.usgs.gov/software/presence.shtml.
A new model has been added based on the paper by Chambert et.al.:
( https://doi.org/10.1111/2041-210X.12985)
Two‐species occupancy modelling accounting for species misidentification and non‐detection.
Currently, only the single-season version of this model has been implemented... multi-season version coming soon.
To install RPresence, just type "install.packages('https://www.mbr-pwrc.usgs.gov/software/bin/RPresence_2.12.12.zip',repo=NULL)" in the R console window.
Jim