i have a tar and gravel roof so its flat and since we had the house remodeled after some very bad leaks and mildew we started having all these scraping sounds from the ceiling (now it only seems to happen in my room) and we think its birds scraping against the roof (do they even make that noise when they walk on a roof like mine) but then there is a noise that comes and goes but is really irritating (we check outside when it started to happen, there were no birds on the roof nor were there any branches near by to make that noise, and nobody believes me when i tell them that there might be an animal in the attic because they said that we have good insulation, is there any other explanation or is ther any other way whatever it is got itself in there