Your search for "Welkin Hawk 25" revealed the following:
Welkin Hawk (EXO) from Exodus, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Rob Alexander Card Text:FlyingIf Welkin Hawk is put into any graveyard from play, you may search your library for a Welkin Hawk card, reveal that...
Squadron Hawk (A25) from Masters 25, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Martina Pilcerova Card Text:FlyingWhen Squadron Hawk enters the battlefield, you may search your library for up to three cards named Squadron Hawk, reveal them,...