Teamsters Local 727 workers at Brookfield Zoo Chicago launched a strike on Monday, May 4, according to a press release by the zoo. The action involved grounds, custodial, and facilities teams. Zoo officials called it “disappointing.”
Animal care staff not part of the strike reported for duty. They arrived at 7 a.m. on Tuesday, May 5, to maintain welfare standards, the announcement confirms. Veterinarians and curators oversaw operations.
Animal care stays uninterrupted
The zoo updated its contingency plans per USDA rules. These ensure care in disruptions. Union leaders confirmed staff would work as scheduled, said zoo statements.
Officials stressed protecting animals as the top priority. No interruptions occurred despite the walkout, the press release says. The zoo remains open to guests.
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Healthcare claims debunked
Brookfield Zoo in Chicago denied union claims of cutting healthcare. The plan runs through Teamsters Health & Welfare Fund, shared across employers, per the announcement. Zoo contributions matched or exceeded others, officials said.
According to the press release, requests for union data on costs went unanswered. Commitment to sustainable coverage remains firm.
Negotiations have proceeded in good faith. Talks continued into Tuesday, May 5, based on statements on the website. The zoo has aimed for a responsible contract balancing employee support and sustainability.
The nonprofit, open since 1934, houses over 3,500 animals on 235 acres, according to the website. It holds Humane Certified status and AZA accreditation.






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