I tallied up movements (from telemetry) by non-breeding Crested Caracaras among communal roosts. See the attached map (bulls eyes are communal roosts, and arrows are proportional to the number of movements detected among roosts). It looks to me like I have a roost system, where each roost is used as a local central place from which to forage, but I have no idea how to "test" for this. Any thoughts?