If it's just the usual suspects - the Chickadees, Dark-eyed Juncos, Goldfinches, and other small birds - I know we're good. But when all the big guys and loners start showing up....
|Hairy Woodpecker and Goldfinches|
A couple of years ago researchers were testing whether or not the small Golden-winged Warbler could carry geolocators on their backs. It turns out they could - and they provided some unexpected but extremely interesting data.
In April 2014, the Golden-winged Warblers had just flown from South America to their breeding grounds in the Tennessee mountains when an incredibly massive storm started brewing across the US, one that ending up spawning 84 tornadoes and killing 35 people. Two days before the giant storm reached Tennessee - and while it was still over 500 miles (900 km) away - the birds turned around and fled 1,000 miles back down south to the Gulf of Florida and Cuba to wait out the storm before flying back up north.
How about birds predicting earthquakes?