Birds Fled Area Before Tornadoes Appeared

SternisheFan sends a report from scientists who were tracking a group of birds — golden-winged warblers — in the Appalachian mountains. Just a few days after the birds completed their seasonal migration, they did something odd — they picked up and moved again. Shortly thereafter, a series of storms swept through that area of the U.S., which led to a destructive tornado outbreak (abstract). After the storm had blown over, the team recaptured five of the warblers and removed the geolocators. These are tiny devices weighing about half a gram, which measure light levels. Based on the timing and length of the days they record, these gadgets allow scientists to calculate and track the approximate location of migratory birds. In this case, all five indicated that the birds had taken unprecedented evasive action, beginning one to two days ahead of the storm's arrival. "The warblers in our study flew at least 1,500km (932 miles) in total," Dr. Streby said. They escaped just south of the tornadoes' path — and then went straight home again. By 2 May, all five were back in their nesting area."

Comments

Re:So the question is...

[amiga3D]

I remember a story about a guy photographing animals in an area where a Tsunami hit back in 2004. He said he was taking pictures when suddenly all the animals, I think he said they were some kind of antelope, suddenly looked toward the ocean then the entire herd ran away. He was greatly puzzled until a while later when he was hanging onto the top of a tree for his very life. I know if I'm somewhere and suddenly all the animals start hauling ass I'm going to follow them.

Re:So the question is...

[TapeCutter]

so why don't we start listening for it with our warning systems?

That's what I was thinking, also how can a tornado make any type of noise 2 days before it forms? I can understand animals picking up things we can't, deer may hear the rumble of a quake that causes a tsunami, my dog routinely hears thunder 15-20 minutes before I do and looks for a hiding spot, but how the hell does any animal "hear" something that won't exist for another two days?

Having said that the animal kingdom is full of "mysterious knowledge", for example crocodiles in Northern Australia can somehow "calculate" when a king tide will occur, about an hour before the event they gather at a particular ford across a river where the unusually high tide spills over the ford leaving a bonanza of fish stranded on the rocks. Even Attenborough admits he doesn't have a clue how the crocodiles "know" when to gather at the ford.