Statesman Journal: California brown pelicans usually nest and hatch chicks in Southern California and Mexico. But in the past two years, scientists have seen them building nests much farther north on an island in the Columbia River.
The unusual nesting behavior follows a northward shift in the birds' migratory patterns over the past three decades, according to Oregon State University seabird ecologist Dan Roby. He noted that a similar pelican species has also been moving north and expanding its breeding range on...