Recently, I started training my parrots to target and recall. Training takes place in the living room, which is where their cages are located. For a couple of weeks, I've been training one at a time while the other watches. Now, Bijoux (conure) has started raising hell when it's MissChief's (cockatoo) turn to train & though, I attempt to resume without missing a beat it's distracting MissChief.
I thought training MissChief in another room was a good idea. lol Yeah, right?! That seems to make Bijoux angrier; neighbor across the street sent me a text "what are you doing to that little parrot? I kind of like hearing them but this time it sounds like your trying to kill it lol"
So, not only is Bijoux's screaming hindering training sessions with MissChief, it's embarrassing.
I'm not fond of the "cover cage to quiet" technique and only cover at night during bed time.
Please provide me with suggestions

"Many have forgotten this truth but you must not forget it. You become responsible, forever, for what you have tamed."
—Antoine de Saint Exupéry, The Little Prince