DaveW:
Mooch, Uminchu is telling you that rainbows and steelhead are the same species. When they look like your picture, they're in their stream coloration. When they smolt and go to sea, or think they're going to sea, they turn chrome (a much better camouflage for ocean life). Many Oncorhynchus mykiss don't go to sea at all, and we call them rainbows. Many rainbows can have coastal steelhead as parents......or the other way around......or even rainbows can (and do) spawn with big, old steelhead.
Steelhead live in a crazy world.
The Impractical Fishemen:
I love the parr markings on the small Rainbows. Very cool catch.