The Police Stayed in My Sister's Room and Found Footprints

My sister had a pet bird in her room. She said that she woke up because the bird was just going nuts. The moon must have been out that night, because she could kind of see some one standing in her rooms. This person actually crouched down and started moving towards her a little bit. He reached out and grabbed her by the leg. Once she started screaming, the man immediately jumped back out the window and gone pretty quickly. When my dad called the police, they said that they had had these types of break ends before,. They thought that it was all the same person doing it.