  In this work, we study the evolution of an evaporating black hole, described
by the Kerr--Taub--NUT metric, which emits scalar particles. We found that
allowing the black hole to radiate massless scalar particles increases the
angular momentum loss rate while decreasing the loss rate of the NUT parameter
and black hole mass. In fact, it means that angular momentum will disappear
faster than the other black hole parameters (mass and NUT parameter) during the
evaporation process. We also calculate the time evolution of the mass, angular
momentum, and NUT parameter in order to get the evolution of the Von Neumann
entropy of the black hole. We found that the entropy follows approximately the
so-called Page curve, where the $\beta$ parameter, which quantifies the amount
of radiation, affects the evaporation process. Implying that high $\beta$
values accelerate the evaporation process of a Kerr--Taub--NUT black hole.
