Lots of good advice. A few tips to add.
I have had to walk a few horses down over the years. This involves just what it sounds like; no running, no yelling, no excitement, just walking after them. I do not let them eat or drink, the idea is to get them to stop and let me approach. I just continue to walk towards them, and don't stop. I make sure to have some sort of treat with me to give the horse once they stop and allow me to approach them.
The longest it ever took me was 3 hours.
Once the horse is "caught" then I walk them inside a stall and give them feed. When I turn them back out, I also give them a treat and some soft strokes, usually on the neck.
Most important is to talk to them with a soft, praising voice. Have known a few folks that don't talk much to their horses, and the horses don't seem to like that. Not sure quite why that is, but have noticed it more than once.
I'm always talking to mine when around them
One is the prettiest pony in the world
! One is the sweetest girl ever
, and now I have the prettiest girl
The prettiest girl
follows me all over the place now...and I do believe the prettiest pony in the world
is a bit jealous...
The sweetest girl
has always been very nervous of people, especially boys. She is one of the ones that I had to walk down for weeks. But she now is happy to rest her head over my shoulder when I stroke her neck. She will stand like that for a long time just enjoying my attention. When I whistle she stops what ever she is doing and comes up to me. Its a great feeling when a horse trusts you