Each spring, these tiny birds fly thousands of miles north—but warming temperatures may be reshaping when and where they ...

Ducks, geese, swans -- Curassows, guans -- Partridges, grouse, turkeys, Old Word quail -- New World quail -- Loons -- Grebes -- Albatrosses -- Shearwaters, petrels ...

North American bird populations are not just shrinking; they are shrinking faster with each passing decade, and the worst losses now cluster in the continent’s most intensively farmed regions. A study ...