The reasons why dogs bark in a crate, as noted earlier, are multifaceted.
To pinpoint a particular reason for a particular scenario, you would first have to establish the conditions responsible in the first place.
For instance, incessant barking in a crate could be a case of excited barking if it happens at a time when you’re on your way out of the house, or are just returning.
Your dog sees you and gets excited; wants to run at you and jump and play, but it obviously can’t, thanks to the restrictions of the crate – hence the barking.
This is also a general indication of separation anxiety, which is one of the major reasons dogs bark in a crate.
Anxiety-driven barking is not just limited to separation anxiety, though. It also occurs during external events that are capable of causing great fear to a pooch.
For instance when there’s a loud noise and thunderstorms, it is normal for a dog to react to the anxiety by barking nervously.
Another condition that can help understand what it means when a dog barks non-stop in a crate is when this happens at night. A dog barking at night when there’s nothing going on is usually an indication of boredom.
It is quite understandable, too, seeing as even humans who are left alone by themselves with no stimulating activity tend to get excited and develop a good amount of pent-up energy.
And while we may expunge our energy by running, or working out, a dog left in a crate at night does not have this luxury, and will instead choose to deal with it through nervous barking all of a sudden.