Little fella

Yesterday I saved a little sparrow from my cat. After the shock it started to panic. I tried to free the sparrow in the wilderness (outside), but it escaped and hided back of my closet. I left my room (that was the quietest place in the house and safe from my cat) window open till midnight. I thought it flied away, but for my surprise in the morning when I woke up, the sparrow flew around my room. I left the window open and went to the store. When I came back I saw a sparrow trying to get inside my window. When I got to my room I saw that sparrow on top of my closet. I tried to capture it, but it went hiding behind my closet again.