Two bison calves were recently born at the Brookfield Zoo.
A male calf was born to 5-year-old Leotie on May 31 and a female calf was born to 6-year-old Lucky on June 6.
Ron, 14, is the sire of both calves.
For a few weeks beginning June 16, guests can see the calves and the rest of the herd on Saturdays and Sundays only while their outdoor habitat at Great Bear Wilderness undergoes routine maintenance.
Once the project is complete, the entire herd will be viewable on exhibit daily.
For updates, go to www.CZS.org.