When Ray Palmer was stranded in South Dakota, 69,997,983 BC, he stole one of Gertrude's eggs and ate it. Ever since, Gertrude has been hunting him down. A dinosaur, presumably Gertrude herself, encountered him in the middle of the forest but he was saved by Mick Rory and Nate Heywood.
Later when the engine from the Waverider got lost within the area of Gertrude's nest, Ray, Amaya Jiwe and Nate searched for it. When Gertrude encountered them after they retrieved the engine, Amaya used her Anansi Totem to communicate with it and Gertrude left afterward.
Gertrude was very protective of her eggs, and viciously hunted those who dared to steal them. She maintained her grudge against Ray Palmer for stealing and eating one of the eggs for many months and even attacked him when the Legends crash-landed in Cretaceous South Dakota again. Nevertheless, Gertrude also proved to be empathetic and gentle when addressed by Amaya Jiwe and allowed the Legends to go in peace when the dangers of Ray's situation was explained to her.