1. Birders World, “Top Ten Feeder Birds,” Birder’s World 9(6)(1995):12.
2. Rick Bonney, “FeederWatch: From Baseball to Bird Seed,” FeederWatch News 1(1988):1.
3. Rick Bonney, “Amateurs Welcome,” Living Bird 10(1)(1991):36–37.
4. Rick Bonney, “Project FeederWatch,” Living Bird 13(4)(1994):34–35.
5. Cornell Office of Communication Strategies, “Focus Group Analysis: Project FeederWatch/Seed Preference Test” (1994).