Here is a picture of Brindy on a normal day:

And here she is on the evening of 31 December when it sounded like we were under bombardment from 7:30pm on:

If you can’t tell much difference that’s because there isn’t any. None of my dogs have been at all disturbed by loud noises. In fact, I used to take my previous dog, Tuple, to the trap shooting range and she loved getting out and walking around the parking lot while all the shooting was going on.
Certainly hunting dogs seem to have no problem with guns going off practically on top of them. Makes me wonder if different breeds react differently or if it’s early exposure to noise or something. Whatever, I’m glad my dogs don’t care about fireworks and the like.