Cockatoo Screaming and Yelling

Birds Scream for attention most of the time.  If you have more than one and they have been spending a lot more time with one another rather than you like in the past, they are probably turning to instinct. In the wild they call their flock to safety at night. it should last only a few minutes if that.

If this is not the case and the screaming is increasing, it may be the result of wanting attention. Be careful it doesn't turn into plucking or mutilation, because those habits that are difficult to treat.

If this has already started you will want to contact a person in your area, possibly a rescue, I say this, only because rescues get all the birds that have behavioral issues. The birds would still be in their original homes if this were not the case, agree? I would hope you would get a lot of useful information from them.

For free veterinarian advice you can try a link like Dr. Burkett online at the Birdie Boutique. Do a web search and the site will pull up. This advice does not replace a vet visit of course, and he can't diagnose stuff online for obvious reasons. But he is our sanctuary vet and we trust his advise.

There is additional information you should include such as what type of Cockatoo, Moluccan, Goffin, Umbrella, etc.
Their age, a picture of the cage, and they type of food your bird consumes on a regular diet, will greatly help your vet. or behavioral specialist.

If the birds started this behavior after your child was born this could also be an additional concern. I have seen some nasty injuries, usually to the parent due to jealousy. I'm sure thats of no comfort.

Recently I convinced an outreach case of ours with a Moluccan Cockatoo (Ginger) that almost succeeded in suicide, to purchase a second cage, change her diet, fill her cage with toys, changing out regularly, and adding foraging toys.  A radio of happy music, (nothing depressing) also jazz was soothing, she seemed to like jazz when they left her alone. Now having two environments, a day and a night cage. She enjoyed going to different places.  The organic pellethelped her depression. Ginger was going through puberty and she was having a very difficult time adjusting at 5 years of age. Today she is alive, well and much happier. her screeming is much lower (only a couple minutes a day now), no injuries, and always a cuddlebug as uasual. Ginger was always in a loving environment.

In conclusion, You will however, NEVER be able to change your birds voice. It is what it is. There are additional methods to improve their behavior and how they respond as a result of your effort to continue to search and learn.

Just remember, if it seems like advice given by someone, seems harsh or abusive, trust your instinct.
It probably is!

I hope this helped.