A veterinarian says acting like a flying squirrel may have saved a cat who survived a 19-story plunge from a Boston high rise.

Sugar the cat had no broken bones or cuts, just some bruising on her lungs after the fall from a window owner Brittany Kirk had opened to enjoy the recent unseasonably warm weather, The Associated Press reported.

The Animal Rescue League estimates Sugar fell between 150 and 200 feet.

Veterinarian Hugh Davis told the AP cats typically splay their legs in a "flying squirrel position" during falls from high places, which slows their descent.

Kirk called Sugar's survival a "miracle" and told the AP building management has since installed a screen in her window.