So as I see it, this is like a fancy all-terrain Roomba. They dress it up like a Fox or Coyote and it wanders around and patrols the airport grounds, scaring away birds and generally preventing them from nesting in the area. Birds aren't going to nest in areas with active predators. So if this looks like an active predator making constant patrols, then birds will just go somewhere else to roost.
Ultimately it saves the birds from being killed by planes or euthanized by other means. They are not harmed with this patrolling robo-fox, it just adds intimidation factor.
Presumably, the robot will also be smarter than a Roomba and would know to avoid running onto the runway or other critical areas.