Do you use a Buzzline?

[lillian]

and do they work?

My main problem are pidgeons and blackbirds.

[lillian]

[tonybloke]

the chap on the plot next to me used them, Bl**dy CRAP!! ( fine when it's windy, but guess what, no buzz when no wind!)
the ONLY way to keep pigeons off is with netting, and don't just throw it over your plants, they;ll sit on it and peck through it!! ;)