Read more about the Predator Proof Funnel (PPF) by QRT
The Predator Proof Funnel by Quail Restoration Technologies is designed as an add-on to the Surrogator, allowing it to be used to train bird dogs. The PPF can also be installed in Johnny Houses, Flight Pens, or any box of your choice to allow quail to re-enter but keep anything weighing over 1 lb. out.
Predator Proof Funnel Video (requires Adobe Flash Player)