HiMy first visit to the site and it concerns a threatened species (bettong). bettongs live in warrens in groups of 4. If we moved 351 bettongs from warrens into a new area (just released the bettongs on the ground surface) and then retrapped at warrens afterwards at the new site what is the probability that a bettong will be sharing with one of the same warren mates from before? The number of bettongs per warren is 4 before and 4 after the move. We only recaptured 100 bettongs afterwards but released 351. So is the probability of a bettong sharing with one other member according to chance = 3/351 * 3 and then you times by 100 to get the number of bettongs expected to be sharing in the new sample? Appreciate any advice on this as we had 12 sharing afterwards (6 pairs) out of 100 so I am trying to work out if this is more or less sharing than expected by chance.