YUP !!! Roof rats live, nest, and reproduce in those palms in great numbers in this part of the country. Then they use the power/ telephone lines as highways to gain entrance to houses by chewing through the home siding/ roof/ etc. Mice soon follow. They also bring in numerous FLEAS with them.Then too, they start chewing on the insullation on electric wireing in the attic when they build new nests in the attic insulation causing short cirquits and occasionally attic fires. My neighbor replaced his with deciduous shade trees. I replaced ours with an apple tree. Ten years ago at my new home on 2 acres of grounds, I braught in 100 tons of boulders for retaining walls and landscaping, then I planted 72 Redwood trees and now my home is in the middle of a Redwood forest island surounded by arid rangelands. Now, in the evenings, as my wife and I sit on our 2nd story deck with an adult beverage made out of locally grown fermented grapes, we enjoy the sights and sounds of mourning doves nesting in them and a dozen Cottontail rabbits living under the overhanging branches. Much better than living alongside pests.