@cowboy sam ...It's actually fascinating to see the various wildlife; however, they are getting closer and closer to neighborhoods due to the fact that us humans are destroying their natural habitats and, therefore, they end up in residential neighborhoods...Not far from us, we had a couple of beautiful large wooded areas...Then along comes a builder who had to destroy one of the wooded areas to build a large area of apartment complexes....Do you think that was enough for the builder?...Of course not!...Next thing we see is the other wooded area being destroyed also so that the builder could put up more homes.
So that leaves the various wildlife with their natural habitats totally destroyed and so they end up wandering around the residential areas and looking for somewhere else to live...It is so sad and tragic really and a sensitive issue for me!
One time, we saw a beautiful Bobcat and her two precious Cubs passing along one side of our house going towards the wooded area behind our neighborhood and they were headed up towards an area that becomes more heavily wooded, so I think they had a den located there...It was a gorgeous touching sight!
So, anyhow, those small imprints that you saw by your basement window were obviously from a small animal that, for whatever reason, tore at your screen...There are nocturnal creatures that roam around at night also...Woooooooooo!!! lol
Hope you are having a nice relaxing day...It is rainy here and I've been doing some laundry and just relaxing after a busy week....We are roasting a chicken for dinner and will have green beans and carrots and some stuffing....perfect day for it!...I'll have a plate delivered to you! 
Lubs Ya! 
~~Formerly known as "WildFlowers"~~