My FI and I are having our wedding outside at an arboretum. Our wedding will be garden themed and will include birds as a little mini theme. When we are pronounced husband and wife we want to let go birds and just let them fly away. Has anyone heard of this? And this may seem like a silly question but do you know which kind of birds you can actually use? I don't want to let go of birds that won't be able to survive once we release them...