In this study we focused on the impact of sow-piglet communication during the pre-lying behaviour and piglet condition on piglet location before lying down on Day 1 and Day 3 post-partum (pp) and on piglet crushing. Specific aims were to; (i) determine whether sows that communicated more with their piglets had fewer piglets in the specified danger zone (area within one piglet length of the sow on the side on which she is about to lie down) and sow area and more piglets clustered, (ii) assess whether more sow pre-lying communication, lower proportion of piglets in the danger zone and sow area and higher proportion of piglet clustering decreased the probability of piglet crushing, (iii) assess the frequency of the sow pre-lying communication and; (iv) determine whether hypothermic piglets with a low weight were more likely to be present in the danger zone before the sow lay down and had a higher probability of crushing.