To snake or not to snake, that is the question.
I'm with Bluey & Rocky here, give 'em a go. They came to us (as professionals) for advice.
To the horse owners, I'd say all the answers are here, you just need to sort the wheat from the chaff (no pun...). You need to forgive some of these guys for their bizarre way of "advising" people about issues that are of concern to them. It's a bit of a sport for them to give a newbie a hard time.
However I am also perplexed at the degree of loss you have experienced, and I can only guess you are new to property ownership and are not aware of the sensible things required for maintaining horses outside a stable. Just my opinion.
I too have spent a number of years on a farm and we had a rather lage collection of animals ranging from chooks through to horses cattle and goats. I was engaged in stock feed manufacture and we had large amounts of grain-based product on site at all times. We also had an ongoing battle with mice, but despite that and the large chook yard we also had, we never lost a single animal to snake bite. The one time we saw snakes in the proximity of our horses, it was the horses that alerted us to the two red belied blacks mating just near the house. We all watched the show (from the balcony, while knocking back a few coldies) and then I relocated Romeo & Juliet away from the house. The horses well and truly saw the reps before we did however they weren't spooked, just cautious; they even watched the matinee too.
This brings me to another point. Do you know for sure this is what happened to your horses? Could it have been a result of poisoning from “Curse” or over feeding on clovers, Lucerne or the like? Did you feed sheep feed containing Urea? Did you inadvertently put out a lick block containing urea? Did a vet perform a post mortem or toxicology check? And of course the big one, did you actually “see” the attacks, and if so why did you not do something?
I’m not trying to have a crack at you but from what you have indicated, there may be some basic animal management practice issues here that have been breeched and the old snake has copped the rap.
From what you say your property is herper heaven, some of the guys on this site would kill to go to an area so infested with snakes just to observe them. By and large no such places are rare, as snakes are pretty canny when it comes to keeping away from us humans and equines too.
I think if you follow the good info offered by some of these “herpheads” you’ll see your “snake” problem disappear. If your stock continue to drop, I’d look at some of the things I have suggested along with worming practice and schedules, lice infestation, and so forth because whatever it is that’s bringing down your stock has a common denominator it seems.
All the best
I hope you suffer no further losses
Paul