Judith Kolar carefully applies a small numbered tag to the wing of a monarch butterfly at the Lakeview Community Garden at Diversey on Sept. 14 in Chicago. CHICAGO — Near the driving range in ...

Last year’s count, conducted by WWF Mexico in collaboration with the Monarch Butterfly Biosphere Reserve ... monarchs include two that bear original stickers from the project.

Judith Kolar carefully applies a small numbered tag to the wing of a monarch butterfly at the Lakeview Community Garden at Diversey on Sept. 14, 2022, in Chicago. (Erin Hooley/Chicago Tribune/TNS ...