A greenbeak was a non-sentient creature native to the world of Vulta. These animals emitted a quacking sound and occasionally were observed swimming in water sources. During 3653 BBY, the smuggler known as Zeerid Korr journeyed to Karson's Park located on Vulta with the purpose of delivering a hoverchair to his daughter, Arra Yooms, who had a disability. During his time in the park, greenbeaks were present, swimming in the pond, and Yooms was providing them with food purchased from a utility droid responsible for cleaning the park. After obtaining her chair, she then began to pursue the greenbeaks around the park.
The initial appearance of greenbeaks was in Paul S. Kemp's 2011 novel, The Old Republic: Deceived.