August 21, 2014 at 12:00 a.m.
Can pigeon excrement cause roof leaks? Lisa asked, "I heard that when rainwater mixes with pigeon excrement it becomes acidic and it is a common cause of roof leaks (mixture eats through the waterproof underlayment). Is this true?" I asked Ian Hollandsworth from Ruffle Feathers Bird Control in Sacramento this question. If ...