The passenger pigeon was once the most numerous bird in the world, but in just half a century, it had gone extinct.

A bald eagle that was spotted standing on the street last week in Hinsdale was suspected of having bird flu and euthanized.

After years in captivity, five members of a rare bird species called the ʻalalā, or Hawaiian crow, are flying free in the wild, officials announced Wednesday.

Populations of palila, a critically endangered finch-billed species of Hawaiian honeycreeper, declined to about 500 ...

Josh Green in January, 2024 was “Makahiki o nā Manu Nahele: Year of the Forest Birds.” According to the state Department of Land and Natural Resources, an estimated 47,000 people engaged in ...

A bird banded by the Forest Preserve District of Cook County was found one year later, 2,500 miles away in Columbia, South ...