How?? - Part 2

On March 17, I told you about how I found a starling in my kitchen when coming home from school one day. Well, yesterday I was moving a sofa in the finished section of my basement and there on the floor was a dead sparrow. There was no odor nor any decomp. It's hard to say when the TOD was because my town doesn't have a notable coroner nor a crime scene unit. I took the little guy and deposited him in the garbage and like before wondered how he got into the house.