Fossils from more than 300 million years ago found right in Illinois are on display at Chicago's Field Museum.

The fossils at the Mazon Creek site are so abundant and so well-preserved that researchers can reconstruct a detailed ...

One of the "world's best fossil sites" is located just an hour outside of the Windy City, according to Chicago Field Museum ...

The nation’s grassland birds, spread across 320 million acres in 14 states, have declined 43% since 1970, more than any other category, and are “in crisis,” according to a report.

CHICAGO — The Field Museum unveiled its acquisition Monday of a fossil showing the earliest known bird species — Archaeopteryx. Only a dozen other Archaeopteryx specimens have been found with ...

As more dead birds are reported, it’s highly likely their deaths are the result of the spreading avian influenza, according to the Illinois Department of Public Health, Illinois Department of ...

Bobolink-conscious management of hay fields also can help in Illinois, Pollock said. The birds lay several sets of eggs in the course of a summer, and mowing can prove fatal to the young.