Fly Swatter

We've been in the house 8 days and for the past 2 days we have been dealing with a serious fly infestation. After bombing the place last night we woke up to about 50 flies in our living/kitchen area. I called pest control to see if they could find the cause. After a short inspection in the attic, apparently we have a huge amount of feces. Good times. I tried really hard not to puke at the thought of an attic full of poo. I was successful on that front. You know it's bad when the pest guy says..and I quote..."bless your little heart".