Honolulu Zoo staffers were growing more concerned Friday about the health of three exotic birds that escaped earlier this week after vandals cut holes in their cages.

By Friday afternoon, only a male buff-headed ground dove remained at the zoo. A red Eclectus female parrot that had hung around a couple days probably left, and a gray tawny frogmouth remained unaccounted for, said Tommy Higashino, acting zoo director.

“Very worried about the tawny because it was a hand-fed bird,” he said. “And also very concerned about the Eclectus. It’s going on four days now.”

Zoo officials said someone cut open 24 bird cages between 6:30 p.m. Monday and 7:30 a.m. Tuesday, allowing the three birds to escape. Police said on Wednesday they had no suspects. Higashino said the holes in the cages have since been patched.