Hawkgirl is a fictional DC character.
Shiera Hall was one of the members of the Justice League who decided to take a more merciless approach and eliminate those who worshipped Darkseid. With the consent of Aquaman, Hawkgirl remains as general. But when the time portal was discovered, she didn't refuse her chance.
The Shiera Hall version of Hawkgirl is a playable character in a crossover game between Lego Batman (hence the title) and Lego Marvel. Her character token is hidden in the final level (Final Curtain (Possibly)), in the fight between the Hulk, Wolverine, Sabretooth, and the Abomination against the Taskmaster.