On Thursday, the 47-year-old actress shared a short video of herself on Instagram taking Gonnyi to the animal hospital after noticing something was very wrong with her chicken.
"I've got to get Gonnyi to the hospital, quick," she says. "I've never been a chicken, but I know this isn't right. Part of her insides are coming out in the wrong way. This is not what the Lord had in mind for this chicken."
She then turns to the chicken in the backseat, crooning, "I'm sorry, sweetie. It's a rough day."
Garner still had a sense of humor though, apologizing to Gonnyi for laughing and pointing out the vet techs were eating Chick-fil-A. But unfortunately, Gonnyi didn't make it.
"Gonnyi suffered a prolapsed rectum and another undetermined mass in her nether regions," the video notes at the end. "She will be dearly missed but is resting peacefully."
Garner noted that Gonnyi lived a good life.
"RIP Gonnyi ♥️," she wrote in the caption for the video. "Yesterday we said goodbye to our sweet Olive Egger, Gonnyi. Thanks to my daughter’s consistent loving care, this chicken lived a very good life. ♥️ #soyouthinkyoucanfarm??? #butyoustillneedavet??⚕️ #prolapsedrectum??♀️?? #RIPGonnyi??♥️ ."