It is rare, but to be expected in eastern North America, early summer.

A large portion of eastern North America felt the effects.

Cougars used to be found all over eastern North America.

Mainly in eastern North America, but found across the continent.

It is an invasive species in some parts of eastern North America.

It is also grown, though less successfully, in parts of eastern North America.

It is among the smallest bats in eastern North America.

It is found in most of eastern North America.

The range of this bird appears to be expanding into eastern North America.

He wrote three key guides to the ferns of eastern North America.