by gabbagabbawill » Fri Feb 10, 2012 7:07 pm
There's only a few ways to know 100% if you have a male or female. The least invasive way is to have a DNA test done. I don't know about in the UK (assuming that is where you are from by your name), but here in the States you can have a DNA test done for about $25 by mail-order (post). An avian vet can also determine sex surgically, but this is not recommended. Lastly, if you see her lay eggs, well then you know it's a girl.
Any other method of sexing is just a guess.
Regurgitating is hormonal behaviour, and it's best to ignore this behaviour unless your bird is sick or ill. If you suspect it could be ill, take it to a vet.
Attacking you or another person can be attributed to hormonal/ bonding behaviour, but it can also be corrected.
Does he let you handle him? If so, this is a good start.
My guess is that your bird may have been bonded with its previous owner and it now misses that bond and is looking for you to replace that missing person. Adding another person (a male in the room) probably makes your bird worried that you may leave him for another person, abandoning him again.
What you can do is some training. I would use positive reinforcement with target training and treats to start with. When the bird goes is good at target training with you, and learns good behaviour can be rewarded with his favourite treat, then you can work on training him to be ok with someone else (the offending male) in the room while target training OR you can try target training with the other person with you OUT of the room.
Eventually, you'll want to slowly introduce another person in the room and reward good behaviour (not attacking) with treats. Have the person start from across the room, where they are just in sight, and approach the bird and you only one step at a time, then pausing. Reward the bird's good behaviour with treats, and as the person slowly approaches, your bird will gradually learn that when this person comes closer, he will get something he wants- treats. Eventually, your bird will be trained to have another person in the room and stop attacking you or the other person.
I know this isn't a thorough explanation, but I can get more in depth if you're interested in trying this type of training... watch Michael's (the site owner) videos, especially the ones about target training. If you can teach your bird to target train (you can, it just takes a little time and patience), then you should be able to get someone else to target train with them as well. Target training and trick training is very rewarding for you and your bird. You will enjoy a better, different kind of bond that will allow you both to live more happily.