David, Reading your message had me chuckling. One man's backyard habitat may be another man's tangled mess. Have you asked your neighbor if they are trying to provide nesting sites and shelter for birds? There are several national and local organizations dedicated to increasing urban and backyard habitats for birds to mitigate the habitat loss due to home building, parking lots etc. Does this area shade your garden? If not maybe you could put some bird feeders/water source up on your side of the fence and be absolutely amazed at the variety of birds that you would be able to see during the changing seasons. If the tangled mess is shading the only place you can put your garden, that is a real dilemma. I wouldn't want to be without my garden. I also would be lost during the winter if I wasn't able to play host to nearly 100 species of migratory birds. I'm a "stay at home" because of physical disabilities. The winter would be a long season of drudgery without the birds. Luckily, I don't have the pest birds like Starlings, English Sparrows, Pigeons and Grackles. I am fortunate enough to have enough space to garden to my limitations and still provide habitat for birds year round. The nesting birds keep my tomatos free of Hornworms and help control other insects as well. I sure would like to have some birds whose favorite meal is grasshoppers/fire ants. Those two pests do a lot of damage to all of my garden crops. You certainly have the right to enjoy your property in the manner that pleases you best. I hope that you and your neighbor can work something out that let's both of you enjoy your properties and remain good neighbors. Allen Bastrop Co., SE Central Tx. Wildscape #1071 Zone 8