Dove or pigeon was a pet bird special, because acquitted in anywhere can find her way back to her house. No wonder, pigeons for centuries turned into a bird post a letter of instruction. For many years scientists figure out the navigation system developed in this animal. What is this animal can embroider mourners earth map google map?
Later they developed revealing acoustic map system. In the Journal of Experimental Biology, Head of the study, Dr. Jonathan Hagstrum, from the U.S. Geological Survey, said the birds of the acoustic map created their surroundings. Although this hypothesis still a matter of debate among members.
Professor Bill Keeton of Cornell University is able to understand the ability of pigeons to find a way back to a place they've visited. She let go of a number of birds in the state of New York, but found that the birds were flown in Jersey Hill, near Ithaca, to be disorientation and fly without a purpose.
This incident happened over and over again, apart from an incident on 13 August 1969, which the birds can come back to their place. "Birds fly by using a compass and map. Compass used usually is the position of the Sun and the Earth's magnetic field, but the maps used are not known for decades," said Dr. Hagstrum
"I have found that they use their voice as a map ... and this would explain their relation to the house." Pigeon, he said, using "infra-sound", which is a very low frequency voice is not captured by the human hearing.
He explained: "original voice of the ocean. Waves at sea in their influence and voice created between the atmosphere and the Earth. You can take it with you anywhere on the Earth's energy, even in the center of the land."
He believes when the bird is released in the territories they do not know, they listen to the mark of the infra sound sinyak from home - and then use it to determine their attitudes. However, infra sound can be influenced by changes in the atmosphere.
Why some birds which can not be discharged back home to New York? "The structure of temperature and wind in the atmosphere above New York has turned and on Jersey Hill," he said. That is not able to hear the birds and lost. Infra sounds that disturbed the puzzle explaining how birds to find their way home, and this explains why there are cases pigeons can not find their way home.
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Regards, Dwi Hartoyo, SP
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