Why They Burry Bones
This is simply wild instincts talking as they do not know just how their next meal will be coming about, they do not know that you as their beloved owner will forever feed them thus, they burry it and keep it for later just in case. When need be they dig it up once again.
Loud Barking
Loud barking and yelping can mean that your pet is frustrated, scared or simply for territory reasons. During a storm or windy weather, it is usual for them to bark and feel a bit feared. Sometimes it is often to let you know- this being if they are in pain.