The great development of mobile wireless sensor networks has many very important applications. One of the most important applications that has attracted scientists' attention recently is to track animals in their homes to follow the behavior and lives of some endangered animals, but monitoring animals activities in the forest is a very difficult task, especially if the animals to be monitored are teeny, therefore we cannot use the traditional tracking systems ) like GPS, As well as the harsh and dangerous nature of the forest make the use of wireless sensor networks the best solution, especially that sensors are low-cost, small size, which made them suitable for such tasks, in this research we will study new way to track a group of partridge where sensors are placed on these birds to observe their life and behavior ,The important challenge in this research is to know the location of these mobile birds to be able to the help them in appropriate time , so will introduce a new method that provides us with acceptable accuracy, a simple, easy, inexpensive and low energy consumption compared with other methods of animals tracking ,based on a set of predefined reference nodes, where sensors information is sent to a gathering center through these reference nodes ,then Analyze it and use it to the approximate location of the animals. We will evaluate this method using Network Simulator (NS2).