On April 28, baby bison season officially began. The first calf of the year was born in the late morning, and mother and baby are doing well. Fermilab is expecting between 12 and 14 new calves this spring.

From, April 29, 2019: Fermilab offers several annual traditions for our neighbors, from our Family Open House to our STEM Career Expo. But none are quite as anticipated as the birth of the year’s first baby bison. On April 20, baby bison season officially began. The first calf of the year was born in the early morning hours, and mother and baby are doing well.

From CBS Chicago, April 26, 2019: Officials say the calf was born on April 20, one of 12 to 14 expected this spring. The public is welcome to photograph and see the herd at the lab in Batavia, about 35 miles (56 kilometers) west of downtown Chicago. Admission is free.

From Daily Herald, April 28, 2019: It’s bouncing baby bison time again at Fermilab. Calving season began April 20, with the first born in the early morning. As of noon Friday, there were two female calves and officials expect up to 14 this year. The appearance of the babies is one of the most anticipated events at the physics lab.

Beginning in August, Fermilab’s Batavia Road gate came under the watchful eyes of several sandhill cranes. As employees and visitors alike passed through the gate, it would be difficult to miss these stately sentinels.

A furry critter and its four-mile trek through an accelerator pipe comes to the lab’s rescue in its early days.

The Fermilab bison herd is now in pictures! Watch a 2-minute video, look at a map of the herd’s heritage, and read a playful letter of introduction from the lab’s first herd.

From The 21st, May 5, 2016: Check out this interview between The 21st and Rod Walton, Fermilab environmental consultant, as he helps us get better acquainted with the hoofed beasts that may soon be named the national mammal.

From WTTW’s Chicago Tonight, April 27, 2016: The bison herd at Fermi National Accelerator Laboratory just got a little bigger. On Tuesday, the first bison calf of 2016 was born at the particle physics laboratory located in suburban Batavia, roughly 35 miles from Chicago.