ALBANY, N.Y. (AP) — A 10-year study of Adirondack loons shows mercury contamination can lead to population declines because birds with elevated mercury levels produce fewer chicks than those with low ...

For three decades, David Johnson has guided nature lovers in early spring to northern Illinois lakes to hear the eerie yodeling of hundreds of common loons. Within the next 30 years, however, there ...

Loons on land are stranded loons. What you can do to help.