This project investigates a complex system, which simulates of social interactions of artificial birds: known as ‘boids’. This simulation was written in occam-π by the CoSMoS team. This project identifies an entropy measure from the literature and implements it in occam-π. Problems are identified with this measure and an alteration is proposed by the author. These two entropy measures are compared in two ways: firstly, with a thorough discussion, in an attempt to understand the application of these measures, and secondly by a systematic investigation using an experimental framework. The altered entropy measure, proposed by the author, is shown to be an improvement over the original measure. The altered entropy measure is then used to detect “interesting” behaviour as the boids respond to varying a system parameter. This investigation method is suggested as a template for further investigation; which is applied to a novel simulation modification. This work provides many opportunities for future work, by applying the entropy measure to other complex system simulations.