Seagrid (ジーグリード Jīgurīdo) is the main antagonist in the movie Nobita and the Winged Braves.
Seagrid before was a member of the Bird Migration Patrolling Troops, however, he was shot by humans. He thinks that one day he will seek revenge on humans. Ikarus was locked in jail after being falsely accused of letting Seagrid shot.
While Professor Hou translates an ancient Birdopia tablet, Seagrid's soldiers overhear about Phoenixia, an ancient dragon-like being who can bring destruction to the world. The captain of the crow soldiers reports to Seagrid after overhearing it, after which Seagrid kidnaps Hou for the location of Phoenixia so he will be able to use it to destroy humanity.
During the Ikarus Race, Gusuke manages to win the race but Seagrid disqualified Gusuke for not flying naturally so as to spite his family for not supporting his plans against humanity.
Seagrid manages to awake Phoenixia but the creature does not follow Seagrid's orders and instead rampaging in Birdpia. But Doraemon and his peers managed to defeat the creature.