Increasing aggression from my senegal

[Declipse]

For more context regarding his moving situation you can read my previous thread.
I brought him home for christmas since I would be spending over three months home (the superb parrot, which belongs to my 2nd dad, stayed at my "uni housing").
He rarely let anyone handle him before, but wasn't overly aggressive to strangers nor other family members, only my dad.
He would alway fly and bite at his nape whenever possible.
Yesterday when I let him out he did the same to mother, which had never happened before. While luring him with food to put him back in his cage to cool down and not make the situation worse he bit(?) me. I'm trying to understand him, I know he most likely bit me because he was already riled up, but he didn't do it in one motion, he grabbed my finger multiple times with increasing strength before I managed to transfer him to a perch.
I really dont know why he is acting this way now, I cant let him out as often due to this. If he was only biting after being approached that's one thing, but he actively "hunting" down other.
I love him, but sometimes I think how much everything would be easier had I gotten a dove instead.

 

[wrench13]

Parrots do not bite unprovoked. You really need t understand him better. Example - the light 'bite' that gets progressively harder is him saying, very plainly, DO NOT CONTINUE. He is politely telling you this at first and when you dont listen, he bites harder and harder.

Putting a parrot back in his cage after a bit only teaches him to bite when he wants to go back to his cage! Instead use what is known as shunning to curb biting.

Biting, whether intentional or not, just over preening your skin or actually taking chunks of meat out - all are PAINFULL! In the wild that sort of behavior is not tolerated by the flock. They ostracize flock members who continue to act like that. We call it 'Shunning'. This WILL work, but needs to be done correctly to get the message across and it needs to be done IMMEDIATELY so the parrot can associate the bite with the shunning action. And it needs to happen every time and with anyone involved with the parrot.

When the bite or over preening occurs:

• Say in a forceful but not shouting voice "No Bite" or other endearments.
• Immediately place the parrot on a nearby, handy chairback. NOT the cage (that would only teach the parrot to bite when he wants to go back to his cage).
• Turn your back to him and ignore him for 1 minute. No peeking, no talking about or too him, NADA. NO eye contact. No less or the message is lost, no more or the bird will not associate the action with the bite.
• After a minute you can try to re-establish contact.

Rinse, repeat as needed. Most parrots get the message after a few times, some may need more. Also very important - make sure the bite is not your fault. Annoying your parrot, asking him to step up when he is otherwise preoccupied with eating or playing, bothering him during known moody times like mating season, or ignoring the warnings and body language of your parrot - these are bites that you deserve! Learn, and be a better parront !!

 

[Declipse]

Thank you so much for your response, I will hope it helps.
My main concern is that if anyone (other than me) turns their back on him, he might just use that chance to fly n bite again.
And to clarify on the first part with him increasing his bite force with each nip- he was standing on a food bowl, which I was holding, I dont know if he wanted me to drop the bowl alongside him or just didn't think that through. I didn't force him to step up, I just held the bowl to him and he came to it as he normally would, not in a lunging way.