Recently I have bought a pair of homing pigeons. Male(10 months old) Female (8 months old).. Bought them seperately from different locations.. I have kept them together in a cage for more than three days.. Male pigeon is not letting female pigeon to eat or drink food.. It is always fighting with female and it behaves very aggressively.. Now both of my pigeons are sitting in different directions.. Is this normal behaviour? How long does it takes to pair up?