Apparently, birds can sense the storms and tornadoes through infrasound before it happens.
The wildlife biologists David Andersen along with the US Geological Survey and University of Minnesota carried out the research. The study shows that the birds flew away from few regions of the United States in order to protect it selves from storms.
The report printed in the Journal Current Biology was entirely based upon the golden winged warblers of US. Initially, researchers were trying to find out whether the golden winged birds can effortlessly carry a geolocater. Fortunately, the birds were able to bear the weight of a half gram geolocator. Experts attached the tracker on the wings of a flock of birds. Afterwards, the data gathered with the help of tracker reveals the exact migration pattern of these birds.
The outcome of the study unveils those 9 small birds left their homeland two days before the storm. These birds flew nearly 1,500 km in order to avoid the storm. It compels researchers to find out from where they get the alert of storms. Infrasound turns out as a kind of alert machine for these birds. It is impossible to listen to these sounds for ordinary human being. Generally, it occur frequencies below 20 hertz.
In April 2014, tornadoes killed around 35 people and destroyed whatever came in its way.
Henry Sterby, an ecologist of University of California informs that researchers already knew that birds could alter their routes between usual migrations. However, this is the first time when experts get a proper evidence to support the early assumptions.