The bane of my gardening life at the moment. Despite a non urban setting, the pigeon population seems to have exploded around here; I have about four nesting pairs, and they never seem to stop shagging, and they're always up at the crack of dawn dancing and coo-ing on the roof. There are other pairs located not too far away.
Now coming into brassica season proper, does anyone have any ideas to ward off pigeons?. Used to dangle AOL CD's around the plants years ago and this was successful for a time, but they are intelligent enough to quickly work out that such deterrents are really not a threat.