how does sam relation ship with frightful change from begining to end

Sam is thrilled whenever Frightful visits him, though he knows he cannot keep her. When Frightful nests on the bridge, Sam climbs up daily during construction to keep her company and reassure her. He sets Frightful up on his mountain with a nesting box to raise her remaining baby, Oski, following the poaching of Frightful’s other two birds. Sam is happy that Frightful is around, though he knows he must let her fend for herself so that her natural instincts will remain strong. He later helps to track down Bate and Skri, but is not allowed to return the poached baby birds to Frightful. The following spring, he is delighted that Frightful visits him, and is even more thrilled when Oski comes to nest on the mountain.