I have an indoor 2 year old tabby. I now live in a 16th floor apartment that has a balcony. Is she safe on the balcony? There are birds that sometimes frequent the balconies and my worry is that she would jump up onto the railing with poor balance or jump after a bird and be going past the 8th floor before she realized there was a problem. My inclination is to keep the balcony door shut and locked even though I'd normally welcome the fresh air. I just wanted to confirm my suspicions?