A novel parakeet‐selective feeder for control of invasive psittacines

Abstract Over 40 species of parrots, members order Psittaciformes, have established nonnative populations globally. Monk parakeets ( Myiopsitta monachus ) are among the most invasive bird worldwide. In their introduced range, monk caused negative impacts on native species, habitats, economies, and human safety. Lethal population management has been complicated by intelligence parakeets, as they quickly alter behavior to avoid risks. Further, lethal control programs halted due public controversy, highly charismatic. The contraceptive DiazaCon demonstrated effectively reduce fertility in other psittacines. field applications, chemical agents (e.g., toxicants contraceptives) must be delivered a manner that prohibits access nontarget species. We developed tested parakeet‐selective feeder. feeder allows limits lowering wire exclusion curtain around feeder, requiring zygodactyl toe arrangement food. trials with captive free‐ranging Florida, USA. successfully accessed food from throughout study. mean number daily uses decreased high nearly 16 per day when was not implemented <1 use implemented. Our findings suggest is promising tool for delivery bait treated manage parakeet populations, but implementation success will likely vary target location, local faunal diversity, availability alternative forage.