is it a bad sign?

[Spishkey]

ive been trying to introduce a third boar to a pair of boars, risky i know but id like to try this route before putting the lone boar through the snip!
so they've been living side by side with a mesh dividing the pair from the lone one. so i thought today i would try letting them roam free together in the communal play room.
well how do i explain, theres been some humping, and squeaking, but now theres teeth chattering noises..? not nice sounding so ive split them back up fpr now. is that a threatening noise? a scared noise? what does it mean? were they getting to know each other or was it a 'stay away from me' warning and i should give up hope of getting the three of them living together? (it was two older boars living together..trying to introduce a young boar)

 

[KingBoris&HisFollowers]

It was displays of dominance,try letting them into a grassy run with veg and hay as there behaviour may be much better,be sure to bath them before doing this,i have 1 trio currently,I'm also pairing a second trio at the moment and getting a third trio from rescue this month so it can be done quite easily with the right pigs and technique,usually the best trios are a daddy type figure and two babys as then there is one leader but it can be done my current trio that I'm introducing are 1 year old,9 months old and 8 months old and its going well.
dont give up yet,make sure you have a towel ready to throw on the fight starter to get the pig out and so you dont get bitten x

 

[Spishkey]

when do i know to remove the 'fighter'? when they grind their teeth? if i see one try to bite? ive saw them tug at each others fur but i wouldnt have called it a bite.....oh crikey this is scary stuff...how do you know when they go too far or they are about to fight?

 

[KingBoris&HisFollowers]

The signs of about to fight seem to be chattering,maybe some bum waggling which is rather cute,and then right before the full leap into a fight the piggy will lower his bottom to the ground like he is about to pounce,if that last step happens thats when i remove them as after that it can be complete mayhem,

In saying that the dominance i have experience with my newest trio upon introductions were small amounts of chattering,a little stomping and my older boar was bum waggling but it settled quickly once the food and grass were put on offer,they seem to bond very well over food naturally.
If you try all these things and they still dont work then call it a day as you wouldnt want to risk upsetting the pair.

 

[*SRH*]

I would only remove the fighter when blood is drawn or they will never get used to each other.