-=> Quoting Oliver Kneip to All <=-
 OK> We have a parrot dont ask what kind all i can say he is green ok the
 OK> wife knows what kind of bird he is besids being a green one, his name
 OK> is osker and he can screech like thiars no tommoro is thair anyway to
 OK> try and stop him of this the squirt bottle thing just dont work He
 OK> likes it to much dont want to throw anything at him he was abused by
 OK> preveous owner and we got him to start talking the last few months like
 OK> (osker bird,meow,peanut butter,etc...) but this screeching it bits the
 OK> ears a bit harshly now and our son just had ear sergery so he's a bit
 OK> sensitive about it now so what can i try to stop this screeching thing!
 OK> does he bit? shure he's part Vampire!
Without knowing the type of bird you are describing, it is difficult for
anyone to give you any advice or information. However, screeching is
normal for many parrots. It is their natural call and they will tend to
engage in it at certain times of day. I don't think you can eliminate it,
as it is inherent in many birds to screech due to instinct.
As for the water bottle treatment, obviously this bird enjoys taking a
bath, as do many types of parrots. What you are doing when you use the
water squirt is you are "rewarding" the bird for his behavior instead
of punishing him. This will INCREASE the screeching instead of decreasing
it. It's standard behavioral psychology, and you have to be very careful
about what you do as you may be, as I said, rewarding the behavior you
want to eliminate, if in fact it CAN be eliminated.
I am not a parrot owner yet...but I have been doing a LOT of reading and
research, and there are books that you can buy in pet stores or bird
shops that will help you understand parrot behavior and give you
information on what is normal for your particular parrot. 
Look for any book written by Sally Blanchard. She writes about parrot
behavior and how to train them so they'll be "nicer." Her techniques
are standard behavior modification methods that are tailored to parrots.
She does mention the biting problem and tells how to (hopefully) train
the parrot out of that. Since you say the parrot was abused by its
previous owner, you may have special problems to get around. Blanchard's
books will be very helpful for you.
I have a background in behavioral psychology/counselling and I 
can tell you basically that if a bird ENJOYS being squirted, 
then use the squirt as a reward for specific behavior. Actually, you 
need to set the thing to a mist and squirt it over the bird so that 
the water drops down as "rain." If the bird enjoys this, it will spread 
its wings and wiggle around in a way that will tell you immediately 
that the bird is having fun. But most authors say to do this only 
once per day, early enough so that the bird can dry off before nightfall.
Since the bird has started talking, I think it indicates that it is
bonding with you, and that is important. If this is the case, then
the bird does want to respond to you in a positive way, but you will
have to put up with the bird's natural behavior. There are just some
things you cannot eliminate by training.
I'n not an expert, mind you, I've just done a lot of reading on parrots
and their behavior, and saw some videos on TV. :)
Good luck!
... OFFLINE 1.50  "Virus check complete.  All viruses functioning normally
___ Blue Wave/QWK v2.12
--- WILDMAIL!/WC v4.12 
---------------