Is it abnormal for a dog to whine and bark for more than two hours?

No it's far from normal. And as the dog gets more used to being put in the enclosure its stress levels increase, as it is now aware that it will stay there all day. It is cruel, though not technically illegal if there is shade and water. You need to talk to them and say "listen I am not complaining about the noise per se. I am worried for your dog as it seems very distressed, I realise you don';t know this as you are at work when it is happening and I knew you would not want your dog to be suffering"

That way they won't be all negative about you just being a pain in the sr$e neighbour.

Yes there are trainging techniques that you can use, lucky for you, i am a dog trainer. Learn here https://tr.im/BIncI

Have you ever heard of the "leave it" command. It is veryimportant your dog learns this. To teach it to your dog, start with something you use as a treat. Put it on the floor infront of your dog. When your dog lunges for it, but your hand over it and say "leave it" really strenly, so your dog gets the message. Do this a few times until your dog gets the idea. When your dog has performed this well, gove him the OK and let him have the treat with you okey dokey command, which could be anything to tell him he canhave the treat.

Then move up a level. Put the treat in your hand and hold it near your dogs nose, finger pointing up. If your dog tries to snatch it, say "leave it" When your dog's nose points in another direction ither than the treat, you've been succesful. Now take it to the next and final level.... the dinner table. sit at the table and enjoy a meal. When your dog begins to beg, enforce the leave it command. if your dog doesn't leave, tell your dog to lay down somewhere in the room far away.

I understand if you like having your dogs with you while you eat so the location of you dog while training is essential. Keep you dog as far away as possible. If you see your dog sneaking over to your table, make eyecontact and enforce the leave it command. If your dog gets up, it isn't obeying, now you need to stand up and make eyecontact. This tells your dog you're ready to do whatever it takes to keep him away from YOUR food. ALWAYS make eyecontact while your eating and your dog is laying down. Make frequent eye contact so your dog can't sneak up to the table with out you knowing. I've done this with many people, and it works even for the worst of beggars. This training may take time, but have perserverence ok? And NEVER feed the dog at the table. It encourages begging.

how old's the dog, is it a recent change, where was it left prior to the enclosure. Could be heat, could of hurt itsel or maybe it's separation anxiety! Hard to pinpoint with out other details

It sounds like something is wrong---my guess is the heat is bothering the dog. Can you see if the dog has been provided with water? Mind you, I wouldn't go up to any strange dog, you know. I'm thinking that is the most likely cause, though.

dog bark - especially when they are problem solving and they think it will get them what they want.

this shows that it will bite seldom now as excessive barking dogs seldom bite.

Hollowpoint - When you care enough to send the very best.... >:-)

you see? that's just another reason most of my neighbours turn up in shallow graves somewhere, lol

maybe he needs to go potty

call a chinese restaurant to come get it