This singing technique called "kulning" is an ancient Swedish herdingcall, that was used by women long time ago to call home the cows and the goats, since it can be heard through very far distances. I sang for the cows one last time before they had to go back to the farm for the winter. I always feel a sorrow when they leave in the autumn. Since May they have been here on the fields, bringing some life to our little quiet village with only 10 inhabitants in the middle of the northern woods. The

3.2M views · 3K reactions | A beautiful, bright night in june I was out to do some "kulning", the ancient high pitch singing, that a long time ago were used as a herding call for the cows and goats, since the sound travel through far distances. I had never before tried it on real cows. I thought that maybe something deep inside them still would remember the sounds from ancient times when the women called them home. It did work. | Jonna Jinton | Facebook

Kulning is the word for the ancient Swedish herding call, that has its roots in the nordic medieval age. Because of its special high-pitched sound it was used to communicate with animals and creature through very far distances. Ever since I was a child i have felt something magical and enchanting about this sound. It really touches me in a way I can't explain. So the last months I have practiced this vocal technique to learn it myself. So this is a short example of me doing "kulning" :) | Jonna

'Kulning' is an ancient Swedish technique of summoning cows by yodeling loudly. Watch CNN's Richard Quest take a deep breath and give it a go. | CNN Travel