try swapping out the eggs for fake eggs
that will help you control how many pigeons you have
as far as the ones you already have you cant just let them go
they are homing pigeons and they will do just that
return home
its a natural thing for them
especially if they are sitting on eggs
the drive to come back home is MUCH more for them
think of it this way
if you were home with your child and someone took you far away you would do whatever it took to get back home to your child
that will help you control how many pigeons you have
as far as the ones you already have you cant just let them go
they are homing pigeons and they will do just that
return home
its a natural thing for them
especially if they are sitting on eggs
the drive to come back home is MUCH more for them
think of it this way
if you were home with your child and someone took you far away you would do whatever it took to get back home to your child