Our goal was to investigate the feasibility of using a wireless sensor network to measure the temporal and spatial variations in microclimates in the Bernard Field Station (a lizard habitat across from the Harvey Mudd Campus). Microclimates are the immediate meteorological conditions experienced by organisms. We did this in a non-intrusive way, basically by distributing remote sensors that would provide habitat monitoring via a wireless network grid. Sensor networks are en emerging technology that allow simple embedded computers with attached sensors to be placed in an environment for remote data gathering. A deployment in the Bernard Field Station can be used by biologists and ecologists to better understand how lizard habitats are affected by local phenomenon including temperature, light sensitivity, and noise. The deployment can act as a testbed for sensor network research including the development of easier to deploy hardware and software elements, improved interfaces to the network, and network protocol development. Our sensor network uses the SOS Operating System (primarily for its inherent ability to support dynamic module loading) running of MicaZ motes.