Dan Cooper: Studying the Birds of the L.A. River

An authority on California bird identification and ecology, Dan Cooper is an ornithologist that often conducts biological and physical surveys around California and the Los Angeles River. Bird populations are often a key indicator of the ecological health of an environment--in the past few years, Cooper has spotted species near the river that haven't been seen for over a century, hinting that revitalization of the area is on the right track.

Bird Species
On the habitat and diversity of the river’s bird population.

Wetlands
How the LA river is regaining the native bird habitats.