Gertrude, mainly known as Gertie, was a female Dino-Bird who was part of an extended family of Dakotaraptors. She was the oldest out of her and her brother. Gertie loves her dad and is eager to prove herself useful in the family's mission to rid the world of Buck, despite her brother pointing out that Gavin's plan is missing a few feathers. She is a secondary antagonist-turned-supporting character of Ice Age: Collision Course.