One of the colorful wood warblers that fascinate birders on their migration; this species was last seen in 1988 and is thus possibly extinct. Since the species is so rare, little has been described about its behavior.

Also known as the social bat because they cluster together in large groups during hibernation, in so-called hibernacula. Their scientific name Myotis sodalis means "mouse eared companion."

A cute and sweet-natured rodent, only found in one county in Ohio. It is commonly known as a "pack rat" due to its habit of collecting shiny objects such as bottle caps, coins and others.

The only parrot species native to continental North America. These gregarious birds showed close attachment to their own kind, when one of them died, a host of chattering birds promptly surrounded its body.

Once a numerous shorebird in the tundra of Arctic Canada and Alaska. With a population once in the millions, it now has not been seen in over 30 years.

Once the most numerous species of bird on earth! They occurred in large flocks that appeared to blackout the sky for long periods of time. A flock of all Rock Pigeons, European Starlings and House Sparrows together would still not equal the number of Passenger Pigeons that once roamed the forests of eastern and central Canada and USA.