Less plot holes then people think, except the ending.

Rating: 8/10 (28 December 2018)

To everyone saying that they're are tons of plot holes, I have to ask, did you pay attention to the movie? I give this movie an 8 because I was really surprised with the depth of the movie, right up until the last 5 minutes. Let's clearify things.
1) the child at the start. Why would any parent let their child walk that far behind. I'm sure this wasn't their very first time going out on a supply run, as they had already created the sand paths. The child was not that far behind, but he had stopped at the start of the bridge while the family continued. Those paths were made for single file, so unless you expect the parents to walk backwards, they will lose sight of him at times. They are the ones leading the group without being able to verbally tell the children where to go while walking in SINGLE File. Also later on in the movie, the parents address how they made a mistake by not carrying him instead. Look what happened with harambe, it's happens people.
2) The aliens: how do they move around? Well I thought it was pretty clear with their clicking that they use eco location, bouncing sound off walls to find where they are. Some blind humans have actually mastered that skill. With these aliens being on a completely new planet with EVERYTHING making sounds, it would be next to impossible to realize humans are the only true threat when they just attack everything.
3) are animals dead. Seemed pretty obvious to me, I'm sure some lived, like mice, but would that matter in the film if a mouse ran by? Clearly raccoons exist, as we only saw one die out of the two... I'm sure larger animals have been taken out as it seems their main source of food is fish. (Also cooked at dinner)
4) Sound proof rooms: well clearly they did make one in the movie that was underground but failed due to a flood. During the initial invasion I'm sure people would have been taken out very quickly with those in more remote locations having some extra time to realize what's going on. It would take a while to realize that sound was their motive if everyone would be getting killed right away. Second everything we use makes sound as humans, so explain how one could make such a contraption without being taken out first.
5) aliens attack some stuff but not others: big example is the waterfall. It's clear that these aliens are able to realize what is white noise after a while. The sound of water, or wind in the trees (which is why the water in the basement was a way for the mother to hide). These are sounds that these aliens can't destroy no matter how they attack. If you were to play a loud radio to distract, they would still be able to end that noise and realize it as a threat. Swipe through water all you want but it will still make its constant sound. "Just make constant noise" well to make noise you need to have something to make said noise, which requires power to make. So either your power won't last forever, or it will ge destroyed.
6) the baby: yes it will cry, yes they also thought of that.... with that box and air supply to hide the crying.. if you're live to just survive and die in the end of old age, alone then what's the point. The point to survive an event like this is to continue. Humans cant continue without reproducing.
The holes I found was, as others have said, why not just move to that waterfall? If you can yell there, you can build a shelter over time. Or those who live near Niagra falls, wouldn't they have a community built up there?
Killing the alien via shotgun.... we find their weekends is high frequency sound? Right? No? Apparently all it took was a shotgun to the face while it was exposed in attack. So the sound ultimately did nothing if all you have to do is wait for it to open to kill it. I'm sure the army would have been able to figure that out. Especially when you've got 50 caliber guns that can sit on helicopters. These aliens apparently struggle to
Rip apart a car, so I'm sure a tank would also hold up fine. There are also dog whistles which would work in a similar manner also no?
All in all, I thought this was actually a very well thought out movie where they tried to end it too quickly. They made these "invincible" aliens very beatable with good aim. That and maybe try to explain a reason why the army was render useless or why you couldn't live near a water fall?