Are there any air fresheners that are safe for birds?

Not really; air fresheners can send out chemicals that are irritating to all animals but you have to be extra careful with birds because they have a sensitive respiratory system. One suggestion instead of a off-the-shelf air freshener is to make your own! Take a spray bottle and fill it with water, then mix in a tablespoon or two of vanilla extract. Spray just as you would a normal spray air freshener, its all natural, and will freshen your room in a way that both you and your feathered friend will enjoy! Another option is to take a small bowl of baking soda and mix in some cinnamon and nutmeg. Stir it up with a spoon every couple days and the baking soda will remove bad odors while the cinnamon and nutmeg will provide a nice scent. Throw out and change monthly.