Brightbill the Gosling who grew up into a fine adolescent goose, after being raised By Roz and Fink, he learned things that weren't..exactly normal by "Goose Standards" being an outcast to his kind, and after learning about the accident that killed his family.. He didn't view Roz as his "mother" anymore.

but that was all in the past, he helped the flock migration and Helped them Escaped the RECO bots, navigating them to the summer nesting grounds in winter and then back home to the island in spring, he saved Roz from The universal Dynamics ship that Vontra had and got his Mom Roz back after her memories where "wiped" but she remembered him because of their strong bond, now he was a grown adult, and learned everything Roz taught him, and then he heard a noise one day in the forest.

"Huh-? What's that Sound?.."