Sparrows are nesting and roosting on beams, pipes and other hard to reach areas in our warehouse; how can we keep them out?
Keep your doors closed. If that is not possible, then you really have only two viable options: 1) install netting under the entire ceiling using StealthNet, making sure it firmly seals up against the four walls. This will prevent sparrows from flying up to their perches. The netting must be 3/4″ mesh, otherwise the sparrows will fly through the net. 2) If your warehouse is very large and you cannot afford a program as outlined above, you can undertake a program of trapping, harrassment and regular nest removal program. Sparrows are persistent birds, however, and most will simply try and try again, and you will end up contributing many man hours to this task, which may cost you more than a solid netting job in the first place.
