The gray catbirds departed in September, taking their feline-like calls and fondness for berries with them to Central America. The Cirque de Soleil-like acrobatic barn swallows disappeared in late ...

DULUTH — “It’s a magical world back here,” Margie Menzies said on a chilly morning in early September. Like most days, Menzies, the education director for the Hawk Ridge Bird Observatory, has been ...