Mark Sloat

Watch the birdie

A bird at the end of a limb on a tree with needles in front of a blue sky.

In early September, a young eastern bluebird may be transitioning from juvenile to adult plumage. Some blue is visible on its head, and the breast is becoming predominantly rusty red-orange.

Bison family

Three adult bison graze on grass. Two calves flank them, also grazing. Two more calves to the right of the herd lie in the grass. Behind them, fence posts, metal fencing, trees and some buildings.

On May 14, 2021, a group from the bison herd, including some of its newest members, graze on the Fermilab campus.