I know some babies come out with the black points right away, and others seem to wait. For some reason, the ones that had the black points from the start ended up keeping the more "black" points, and the ones that showed up a little later seemed to have more of a "red" tint to the black points.
At least that's what I've always noticed. Not saying it's true, just one of those things.
Zephyr is really cute :) but you already know that, LOL.
As light as he is, I wouldn't be suprised if he had quite a few light guard hairs in his mane as he grows.
I'm probably going to get yelled at for this (because apparently everything I know about buckskin/dun has changed, lol), but we used to call that "frosting". And the horses that have it, have this really thin line of white hairs on both sides of the mane, but never really in the middle. At least all the buckskins we've had it's been that way.
I don't have any pictures of Arabella as a foal, but the first is her registration photo (sorry it's not the best quality) and the second is her now, as a 7 year old..her coat is slightly darker and her points are dark brown instead of black.
Well mine isn't grown up yet but in the past five months of owning him his color has already changed some. Though he is a dunskin they seem to mostly be on the lighter side of buckskin shading. So I imagine your little guy is going to change colors a few times. I hope he keeps is buttermilk buckskin color he sure is a cute baby!
Jackpot 4 or 5 months old
Jackpot 8 months old
Jackpot now at 10 months old in his winter fuzzies