RS Pura, Oct 11 (ANI): Traders in Jammu and Kashmir do brisk business as Pakistan branded pigeons, which migrate from the other side of the border, are in demand in the markets. The pigeons, allegedly used for spying, are also a source of income for the unemployed youth who indulge in bird-farming. The Pakistani pigeons are generally branded with certain stamp or with some number. They are also dyed and have ring in their claws. The reason for such demarcation of Pakistani pigeons is still uncertain. There is a remarkable difference between the prices of Indian and Pakistani pigeon offered by the middlemen to the traders.