Be prepared for a squirrel population explosion. My wife loves birds, we get tons of them. Sooner or later the squirrels in our yard defeat any deterrent, we've tried cones, grease, bird spike strips wrapped around the pole... they just figure them out.
This winter a big maple adjacent to the house has 7 squirrel nests, there are another 10 in other trees in our yard. The little buggers dig flower beds when burying and recovering nuts, fight (they are racists - the blacks fight the greys, fight the reds all day long), and some get bold enough to jump up and scratch the screens when there is no food in the feeders.
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