The short answer on Paint Horse noise
A Paint Horse sits at the quiet end of the scale for smallholding neighbours. The Paint is a stock breed built on Quarter Horse blood, selected for a calm mind and steady work around cattle and people, and that disposition shows in his voice. A settled Paint whinnies occasionally, nickers hopefully at feed time, and otherwise gets on with grazing. For neighbours whose gardens back onto your fields, a Paint in company is about as unobtrusive as horse keeping gets, short of keeping no horse at all.
What a Paint Horse actually sounds like
A Paint Horse's call is a straightforward, mid-weight whinny, used sparingly: when his pasture mate is led out of sight, when horses elsewhere answer, and in the first day or two somewhere new. Around the yard the sounds are conversational rather than urgent — a low nicker to the person carrying a bucket, a snort at a flapping feed sack, hooves ambling rather than drumming because a Paint rarely frets himself into circuits of the field. Mares with foals are the exception, calling and being answered more often while the foal is small and still learning the herd's geography. A Paint turned out with the same companions every day is quieter again, because familiarity removes most of the reasons any horse feels the need to call.
When a Paint Horse gets loud on a smallholding
Even a Paint Horse's patience is tested by being left entirely alone. A Paint kept singly who watches neighbours' horses across the fence may take up fence-line calling, especially at turnout and bringing-in times when other yards are active. Feeding anticipation produces the other regular noise: a Paint who is fed the moment he calls learns the association quickly, and a dawn routine can drift earlier and louder across a season. Shows, breeding activity, and a new horse arriving in the next field each produce a temporary rise in whinnying that settles as the novelty wears off.
Yard sounds matter as much as the horse
Because a Paint Horse himself is quiet, neighbours notice the operation around him instead: the early mucking-out run, arena work under floodlights with a voice carrying, and trailers reversing with warning beeps on a Sunday morning. Stock breeds are often shod, and shod hooves on a concrete yard or a stony track are noticeably louder than barefoot steps. Positioning the muck heap work, parking, and loading area away from the shared boundary does more for neighbourly quiet than any choice between two calm Paints.
Keeping the peace with close neighbours
Keep a Paint Horse with at least one companion he can see when his main partner is ridden out, and the loudest trigger on this list largely disappears. Feed at sociable, consistent times, resist answering a call with instant hay, and let neighbours know before a foal arrives or a new horse joins the field, when a few noisier days are normal. A short conversation at the fence usually converts a potential complaint into tolerance for a breed this quiet. When a Paint is eventually sold, KinsLe Transferrable Profiles carry his companion setup and daily rhythm to the buyer, so the easygoing pattern continues in his next yard.