If each town or city, put up a place for the streeters to live in it would be easy then to controll them, bu taking away eggs etc, just like they had in most farms going back large pigeon towers etc,
VIEW OVER THE FORTH 0830hrs, broken cloud, some light rain very light NW wind, visability good, can see over the water.
click on photo to enlarge, click again to enlarge more, notice the tanker lying out .
you wiull see all the boxes on the right of your messages click the top one this will fill all go to the bottom and click delete this will move all with boxes crossed keep repeting this to move more,