What groundhogs sound like
Whistle pig warnings
Seldom straying more than a quick dash from their nearest hole, groundhogs are ever wary, scanning for danger frequently even while feasting, often standing up to get a good look. If they sense trouble, their flight is often accompanied by an instinctive short, sharp whistle, like a sonic squeak that can be heard up to 300 metres away.
Click to listen to:
All photos and sound clips used with permission, courtesy of Lynne Russell, Hog Haven. Visit the Hog Haven website for more resources, including videos of groundhogs and cubs.
This article was originally published on August 25, 2007