Was involved in a discussion on this in another forum. Food for thought (no pun intended), if FL has restrictions for bird calls during mating season, the reason being that it puts stress on the birds, imagine what it'd be like raising a nest of chicks when a fake, squeaky mouse starts chattering in a photog's pocket 10 feet away...likely luring predators to a nest area. Turns out birds react very strongly to distressed rodent calls, as it makes them fear a predator is there, or will be coming soon.