Buy the 2015 Old Farmer's Almanac!
A 12 ga. shotgun, lol. No,A 12 ga. shotgun, lol. No, seriously you can put out a plastic owl but you might have to move it every couple of days because the birds might get used to it. A garden near a dog pen might help as well.

2015 Garden Calendar2015 Weather Watcher's Calendar2015 Recipes Calendar2015 Engagement Calendar 2015 Everyday Calendar2015 Country CalendarNew Year Cross StitchLobster Rope Doormats