Animal abundance estimation is very fundamental due to expanding human population and extensive destruction and alteration of habitats. As a result, monitoring of populations is receiving emphasis in most parts of the world. The control incorporates computational methods in estimating the population size of animals. In this paper, we analyze three different methods of estimating animal abundance and related parameters in environmetrics: capture-recapture method which provides insightful information into the mechanisms of population change, distance sampling which is more focused on measuring the actual size changes and finally the telemetry method which uses modern technology in population estimation. The results obtained investigate the effectiveness of these methods and conclude that the choice of a method largely depends on the nature of the animals under study.