Why did the kids hold parades, they wrote letters, and they protested?

The kids of town banded together to picket (protest) the construction job, holding up signs in support of nesting falcons. Joe tells the kids to leave or they’ll be arrested. Leon arrives to direct the kids into town, where they are filmed and interviewed by a TV news crew. The construction ends, and Frightful’s eggs hatch. But just as soon as Sam thinks they are safe, the construction crews prepare to paint the bridge.