All these ideas suck.
The only tried and true method of bird removal is snake catapult. Just make a catapult (trebuchet if desired) and fill it with snakes. The catapult may be innacurate and you will probably miss your roof the first few times. don't worry though if they're not poisonous snakes the neighbours won't really have a problem and if they are poisonous then you won't really have a neighbour for much longer and therefore no one will sue. Once the snakes are on your roof it's only a matter of time before the bird is dead, in the waiting time I suggest a good cup of tea, personally I like english breakfast with a teaspoon of sugar.
The only tried and true method of bird removal is snake catapult. Just make a catapult (trebuchet if desired) and fill it with snakes. The catapult may be innacurate and you will probably miss your roof the first few times. don't worry though if they're not poisonous snakes the neighbours won't really have a problem and if they are poisonous then you won't really have a neighbour for much longer and therefore no one will sue. Once the snakes are on your roof it's only a matter of time before the bird is dead, in the waiting time I suggest a good cup of tea, personally I like english breakfast with a teaspoon of sugar.