Zoo Knoxville’s Einstein, Famous African Grey Parrot, Dies from Syrinx Cancer

Einstein, the 38-year-old African grey parrot long known as a Zoo Knoxville ambassador, died on 12 February 2026 from a cancerous tumor on her syrinx, zoo staff said. Keepers first noticed a mass on her syrinx in May 2023; the mass did not meaningfully affect her quality of life for three years but progressed in early 2026 to the point that treatment was not an option, the zoo reported through its caretakers and media statements.

Einstein made her home at Zoo Knoxville for more than three decades. Zoo statements and local records indicate she arrived in 1992 and spent the remainder of her life at the Knoxville facility, appearing regularly at community events and University of Tennessee sporting-event halftimes where she often sang the unofficial fight song “Rocky Top.”

Her talent for mimicry and trained cues helped make her a local and national figure. Forbes described her as “a gifted mimic who knew more than 300 sounds and words, and was capable of saying many more than 100 words.” Knox News reported that at age 28 she knew more than 300 sounds and words plus about 80 different cues. Other coverage noted a vocabulary described as “over 200 words.” Those varying counts underscore how widely her repertoire was admired by keepers and visitors alike.

Einstein’s profile extended well beyond Knoxville. Coverage and keeper notes list appearances on The Late Show with David Letterman, The Tonight Show with Jay Leno, Pet Star and CBS’ The Early Show; she auditioned for America’s Got Talent in June 2015 and was featured in a TED Talk, with additional appearances on Inside Edition and other national programs that introduced her to audiences outside Tennessee.

Zoo Knoxville paid tribute to Einstein on social media, writing, “For more than 30 years, Einstein was more than an animal ambassador. She was a friend, she was family, and had a personality unlike any other. With her unmistakable voice, she captured hearts not only here in Knoxville, but around the world.” The zoo also posted, “We are heartbroken. We are grateful. And we are immensely proud to have been her home for more than three decades.”

Keepers mourned her loss in personal statements. Nikki Edwards, a bird keeper, said, “We are so saddened to mourn the loss of our dear friend Einstein.” Rebecca Ziegler, another bird keeper, said, “Our focus was making sure she was happy, safe and comfortable,” and added, “Truly, until the end, she knew she was a queen.” A spokesperson quoted as Mr Patterson reflected on her impact: “This is going to be a tough one. There’s gonna be a little bit of a hole there, for sure… People are going to remember how engaging she was, how charismatic she was. She always brought a smile to everybody’s face. That’s the kind of impact Einstein had. That’s the kind of connection that Einstein had.”

Beyond performance, Forbes noted Einstein’s role as a conservation ambassador at a time when African grey parrots, Psittacus erithacus, were uplisted to Appendix I under CITES in 2017 and are designated endangered in the wild. Zoo Knoxville staff extended gratitude to the animal care and veterinary teams who provided exceptional care throughout her life. For visitors planning a trip to the zoo, Knox News lists Zoo Knoxville hours as 9 a.m. to 5 p.m. daily, adult admission at $26.95, kids and college students $21.95, free entry for children 2 and under and military members, and a $5 parking fee.