![SwanBull](https://bigforkanglers.com/wp-content/uploads/2011/07/SwanBull.jpg)
Bullkie from the Swan today.
The Swan river has a healthy population of bull trout and brook trout. Bull trout and brook trout will interbreed resulting in sterile hybrids. You can identify a hybrid by the vermiculation (wavy lines) on the back and top of head. There seems to be quite a few up the Swan.
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