Extremely stormy weather in the spring of 1996 caused unusually high mortality in birds migrating over Lake Michigan. This phenomenon was documented by Field Museum scientists at the time and a paper using radar images of both weather and bird migration has recently been published describing the convergent conditions that created it.
Ducks spending the winter on the Great Lakes fought for survival during the harsh winter months of early 2014. Many did not make it. We explain why.
This is not the Accipiter we were expecting. Cooper's Hawks are common visitors to the Prep Lab, as are Sharp-shinned Hawks. But not Northern Goshawks. Goshawks are denizens of the northwoods, only rarely making forays as far south as Chicago.