Two boars living together have to decide who ranks first, and they do it out loud. Rumblestrutting with a swaying walk, low rumbling, teeth chattering, raised chins, nose-offs, mounting, and short chases that break off cleanly are the ordinary tools of that negotiation. It looks dramatic to a new owner, yet each display gives one pig a chance to yield without anyone getting hurt, and a pair that can finish these exchanges usually settles into a stable order.
Read Displays Before You Reach In
Watch what happens right after a display. If both pigs go back to eating, exploring, or resting within minutes, the exchange did its job. A subordinate pig that still eats freely, gains or holds weight, and uses the whole enclosure is coping well, even if the dominant pig rumbles every day. Displays often spike at feeding time, during cage cleaning, and in the evening activity period, then fade as the order becomes accepted.
Give the negotiation room to work. A larger enclosure with a clear open run lets a chased pig actually get away and end the encounter, while a cramped cage turns every chase into a cornering. Scatter hay along the run instead of piling it at one end, so eating itself spreads the pair out. Avoid picking up only the dominant pig for cuddles during tense days, since returning smelling different can restart a round of displays.
Duplicate Every Resource and Every Exit
Guarding starts when something valuable exists in one place only. Provide two hay piles, two water bottles, two food bowls, and two piles of vegetables set well apart, so the lower-ranking pig always has an unguarded option. Every hide needs two exits: a single-door house becomes a trap when the dominant pig blocks the doorway, while a two-exit hide lets the other pig slip out the back and defuse the standoff.
Wash and rotate hides and tunnels between spots so no single shelter becomes one pig's claimed territory. During floor time, set out the same doubled pattern in the pen rather than one prized tunnel. If one pig loses weight, develops scabs around the rump or shoulders, or starts spending the whole day hidden, that pattern points to bullying beyond normal rank talks, and a vet check plus a housing rethink come before more patience.
Intervene Only on the Real-Fight Lines
The stop lines are physical, not noisy: biting that breaks the skin, any blood, a wound you find during checks, or a locked rolling fight where the pigs tumble together as a single ball. Those events mean separate at once, with a towel or dustpan between your hands and the pigs, never bare fingers into a fight. House them side by side with a divider afterward so they keep sight and smell contact while wounds heal and tempers cool.
Do not separate for rumbling, mounting, or chasing alone, because separation resets the negotiation and the next meeting often starts harder than the last. Each reunion after a needless split asks both pigs to reopen a question they had nearly settled. If true fights repeat after a careful side-by-side period and a fresh neutral-area meeting, permanent neighbors with a mesh divider can be a kind outcome rather than a defeat, since company through a barrier still gives both pigs social contact without injury.
Dividing daily observation between household members through Care Teams works well here, because KinsLe records who checked weights and wounds each day, keeping the picture complete.