Re: [VFB] Interesting observation-smaller flies

[Joyce Westphal]

I've found that Larry's switching to smaller flies is absolutely
correct when it comes to the Provo River..I have yet to fish a size 10
fly and have the trout take it (except a woolly bugger) but 16, 18 and
20's are the ones that work. Could it be that fish have seen the big
flies so much that they can see and discern them readily, but that
their eyesight is poorer for smaller bugs so they are more willing to
eat them? Inquiring minds want to know.