Which of the following is a method to discourage bobcats from approaching farms?

Using colored lights can be an effective method for discouraging bobcats from approaching farms. Bright or flashing lights can create an unsettling environment for bobcats, which are naturally cautious animals. The sudden illumination can startle them and deter them from venturing closer to areas where they might find potential prey, such as farm animals or poultry. This method leverages their natural instinct to avoid unfamiliar or threatening situations.

Planting more trees, while beneficial for many ecological reasons, does not directly address the issue of keeping bobcats away. In fact, an increase in cover may actually provide more hiding spots for them. Leaving out food would likely attract bobcats instead of deterring them, as they are opportunistic feeders. Installing birdhouses might provide shelter for birds but would not influence the behavior of bobcats in a way that keeps them at a distance. Therefore, using colored lights stands out as a practical deterrent strategy.