Changes in version 1.1-1 (2022-04-13) o R CMD check note fixed, maintainership transfer and documentation improvement. Changes in version 1.1 (2012-06-11) o The data set WAH09 has been replaced by a more recent one: the Western Arctic Herd 2011 data, named WAH11. Changes in version 1.0 (2012-01-25) o First official release. Changes in version 0.4 o The upper bound of the interval given to the optimize function for the population size estimation is back to its original value, but a warning is now printed if the estimated size is equal to the upper bound. A new argument ('maxT.hat') allows to change this upper bound. o Data sets have been added to the package o The documentation has been reviewed. Changes in version 0.3-1 o Change in the upper bound of the interval given to the optimize function for the population size estimation. Changes in version 0.3-0 (2011-11-18) o First CRAN release of the caribou package. This is a beta version. The package is still under development.