At the scene, where April is fighting the alligator, it is night. Only seven minutes later - in the same scene - , when April escapes with her mother the barn, it is day.
At the 1:18:52 mark, you can see a hand steady the railing when April is trying to walk down the stairs.
At the beginning in the RV is the boom mic visible in the top of Aprils mother.
At the 31 minute mark when Mrs Evans is in the kitchen there is a boom mic clearly visible at the top of the shot, from two different angles for almost a minute.