Horse wheezing or screaming, why?

The horse could have respitory allergies. When a horse has those kind of allergies it sounds like they are wheezing when they are being worked. The horse could also have Heaves, COPD (chronic obstructive pulmonary disease), or Small Airway Disease.

He was not wheezing or screaming, he was whinnying. Most likely "talking" to another horse. Horses are herd animals and sometimes do not like being separated, and will call to their friends. Not much different than a dog barking because he hears, or sees another dog. And 35 degrees is a reasonable temperature for a horse to work in, especially when hes only walking.

What your describing sounds like child neglect, or child abuse. You need to go to your parents, or to a school counselor. And let the adults deal with the situation. But if someone doesn't bother checking into the situation, then keep going to the adults until someone listens. It sounds like your friends problem sounds serious. If she is to this point, it will only become worse. She can cause permanent damage, and could possibly die. In a couple years when she is an adult, it will be harder to get her help, because she will have to give her own consent for many services that can help her. And she probably will not. I know it's hard and she may become mad at you if she knows you are the one who told, but this is a serious problem. A true friend would do anything possible to help.

Sounds like the horse is looking for a buddy.. he is not screaming.. he is calling. Carriage horses usually rest in the same area, when they are just standing around for a little while with other horses, then leave, they will call out to the horses they have just left.

It is like having horses in a barn, you take one out and someone is gonna start hollering when they can't see each other anymore.

The horse in the video is not "screaming in pain". The horses there are watched closely for any type of abuse, sickness or lameness..the city WILL pull them off the streets if they show the least bit of distress.

It is Farenheit.. not Celsius..

Justacow has the answer. I just wanted to add that this is called a whinny. They come in different intensities and variations of sound.

Horse language.

Maybe he misses his stable mates? I dunno that's the only thing I can think of. I'm not very horse educated, though. I just know that's the sound my horse made when she missed her sister and wanted her outside with her.

Most likely respiratory problems. I don't know if the bearing rein is ever used in carriage work anymore (ties their head up to make them look fancy) but that can cause damage with what you described.

So...you didn't say anything to the driver? Call Animal Welfare? If you're going to protest foie gras I would assume you'd try to save an ill/injured horse as well.

Respritory problems, or it could be the heat, trying to get good sources of oxygen that wouldn't make it feel like it's burning!

EDIT

Oh now that I think about it...

It could be calling out to its herd mates. Horses are herd animals, not meant to be seperated, but they still are. But you should have called someone. You arent supposed to work horses at that temperature (we are talking celcius, right?)

well me and my mum own a horse riding school and we know alot lol its proberly upset about summin or scared check where hes staying for anything tht will scare him or hurt him hope i helped

he misses his friends i think.