From what I understand, wind-sucking is a form of cribbing (or maybe it's the same thing). A horse puts his teeth on the top of a fence and stretches out his esophagus allowing air to go down into his stomach. I THINK. As for a way to stop it, they make many different cribbing collars that are often effective. It is usually caused by boredom from being contained in a stall or small paddock by themselves for long periods of time. Fencing; I think it is most common with wood fencing but a horse can use anything he can get his teeth on to crib from metal T-posts to solid wood fencing to metal pipe panels.
I don't have a lot of experience with it as I have never owned a cribber/wind-sucker. :/
I am not sure that I would overlook him. He may be just the horse you are looking for and if windsucking is his only vice, that can be managed. I would go ahead and give him a shot before you just completely count him out. I don't know about there but here, proven beginner safe horses are not exactly easy to find and if you are looking for one, it is not easy to take your time and shop around or they will be gone.
I own a windsucker. He's an anxious boy, and doesn't latch onto fencing to do it... he will just twist his lip and suck in air, or even open his mouth and suck it in like an air junkie...
Idiot boy Windsucking isn't something I'd turn a horse down for. If you don't have post and rail, then I wouldn't be too worried. Most windsuckers do latch onto fencing like post and rail and suck in air that way... I haven't looked into it scientifically, but it can be caused by boredom or stress... and I find Evo only does it when he's worrying about something... the photo was taken in the first week of owning him in 07, and he windsucked for a good couple of weeks, as he was nervous about all the new things! Now he tends to just do it when he's separated from Honey his lover, and she's being a little minx and chatting up the gelding in the paddock next to theirs Or when he's anxious. If the horse you're looking at is, windsucking aside, very suitable for your needs, I would enquire more. There are collars you can put on them... but there's no real cure to it really... I found this for you:
Wind sucking is the aspiration of air, done by the horse arching its neck and sucking in air. Some horses do this while holding onto something with their teeth; others do it unaided. It results in a grunting type of noise. The horse learns to gulp down air simply by creating a vacuum in the mouth. Traditionally wind sucking has been described as a cause of recurrent colic or failure ‘to do well’, but the vast majority of horses that wind suck suffer no adverse effects at all. If the habit is severe the muscles on the underside of the neck, which the horse contracts when it arches its neck to suck in air, may get bigger and this might be regarded as unsightly.
How can I control Wind Sucking?
Don't try making surfaces unpleasant to taste as this is only likely to make the horse more frustrated. It is better to allow your horse to crib bite on a suitable surface, such as a hard rubber board, than to try to physically prevent the behaviour with straps or collars. Make sure your horse has lots of roughage in his diet and plenty to chew on during the day.
Having owned two windsuckers I know it's not really a huge problem . One used fencing to crib on whilst windsucking the other needed nothing at all .
I would rather have a windsucker than one who weaved or bit or kicked .
Makes it easier to negotiate on price as the horse has a vice but as my vet said - it dosen't really effect the horse.
If the rest of the horse behaves as you want then don't overlook it.
I HATE the sound they make. It's like chalk on a blackboard to me. I've sold a few good horses over the years that were found to be cribbers/windsuckers. They are difficult horses to resell and usually develop digestive problems as a result of the habit. They become addicts to the habit since it releases endorphins and gives them a high.
This is a horse that I sent back after I found that she sucked wind: (I posted this a few days ago in another thread)