a few years ago, there were lots of untagged cats in my district. but then the city sent out ammo -- animal catchers and from one day to the next, the cats were gone. except for mira, who i rescued. when there are too many of one kind of animal, people get frightened, especially city hall. >> it's part of the concept that the numbers of any single species should not get out of hand. that is why prayer grinned falcons have been brought in to drive out at peregrine falcons have been brought into drive out many of the pigeons. in -- a breed of peregrine chicks was born, a first of the city. >> if you told me a decade ago that there will be peregrine's in paris, i never would have believed it. they are birds that normally only lived in the wild. >> residents seem to appreciate the initiative, more animals in paris, albeit with certain reservations. >> the pigeons are a nuisance, but they have been largely exterminated in paris. inks are much better now, as long as they don't make a mess -- things are much better now. as long as they don't make a mess, o