For some reason, birds seem to be pushed to the bottom of the list when it comes to the most dangerous pests in food processing plants. It may be because they seem less harmful than other pests like termites, cockroaches, and rodents. However, this is a common misconception. When outdoors, birds can be harmless creatures, but when they make their way inside a warehouse to nest and seek warmth, they begin to be a problem.
Not only can they cause messes and distractions, but they also bring in flammable debris and disease-causing microorganisms. The most common microorganism spread by birds is Salmonella - which up to 50% of house sparrows were found to contain.