[null and void]

If you can find the plastic cobwebs (Hallowe'en kinda thing) draping some on the trees really discourages birds. It tends to stick to their feathers. They hate that...

[Sundog]

I never thought of that. I was thinking of fine fish netting made out of, say 20 lb. test line.

A rather cynical thought -- on that other thread about 'buy a riot control vehicle on e-bay for only $85,000' -- someone has a dandy link to a spud-gun supplier and the state-of-the-art spud gun has an impressive recoil and a deafening blast.

One of those could serve the dual purpose of detering marauding cats and dissuading birds from hanging around.

I'm probably too cynical this morning, your halloween spider web stuff sounds like a better way to go. Thanks.

Riot control vehicle for sale on Ebay