Migratory shorebirds losing ground in Mexico
As the weather cools up and down the northern Pacific Coast of the United States and Canada, millions of shorebirds take to the skies and head south, some as far as Argentina. At least half will stop
As the weather cools up and down the northern Pacific Coast of the United States and Canada, millions of shorebirds take to the skies and head south, some as far as Argentina. At least half will stop