Bull Trout

"Willi" wrote in message
...

I thought the Redside was your native Rainbow. How about this, do
Steelhead and nonmigratory Rainbows share the same watershed...

Yes, they do.

...and do they interbreed?

According to Robert Behnke in his excellent "Trout and Salmon of North
America," occasional interbreeding does occur. He goes on to say that
"Reproductive isolation, although not complete, must be sufficient to
maintain the integrity of the hereditary basis that separates steelhead and
resident rainbow trout."

Cheers,
Bill