Abandoned horse

Just wondering if anyone can assist me. I was driving through Horton Heath Road yesterday and noticed a horse tied to the gate with a bucket of water on the ground.

It was on the patch of grass not far from the pavement. I didnt think too much of it initially, on my drive home today. The same horse is still there. It has a bucket of water but it definitely feels like he may have been abandoned. Tonight I drove across that way and it’s still there. I’ve reached out to the RSPCA who recommended I call the world horse welfare which I done. They told me to call the council. I feel like I’m just going around in circles and nothing is being done.

Does anyone have a suggestion? It’s on a public area where new builds are being built. I reckon the horse belonged to travellers who have abandoned it there.