by Andromeda » Wed Mar 20, 2013 2:00 pm
What treats are you using (curious)?
I agree with Michael: food management and variable ratio reinforcement. I just want to add that you should put the behavior on cue if you haven't already and then only reward (on a variable ratio) when you cue it. Do actual training sessions where you cue, reward, cue, reward, and do that for 5 - 10 minutes but do not reward (with food) if it is not cued. If you do this the bird will learn to only expect a treat when it's cued and over time won't beg as much by going on and on and on (which can also lead to frustration as you have seen). If the bird talks without being cued outside of these sessions that's fine but don't worry about rewarding for that.
Regarding the variable ratio I reward my birds at intervals of 3 - 6 times at random. I know Michael goes higher with his birds so depending on the bird you can potentially do more than 6. However if you are just beginning to use VR don't start too high as if you start out right with 4 - 6 times the bird might get frustrated or possibly even cease the behavior entirely if it decides it's not "worth it" due to not being rewarded enough. Start with maybe every 2 - 3 times at random and over time push it up to 4 - 6 (or more) at which point you can reward every 3 - 6+ times at random.
Good luck!