The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
In 2004 on Nelson's I was stopped in my tracks for a while when I spotted some tiny black midge hatching in large numbers. I bent down to look under the water and zillions of them had moved to the top of a fair sized rock and were crawling around on it and then heading to the top to hatch...Except on the top of the rock it still didn't look like a "cluster" on the top.
Spence -
What hooks do you prefer for your Klinks?
Allan -
Regarding your links - Some of the best midge insights I've read! Great photos too. Kudos...
I have not seen a cluster of midges (or tiny flies) on a stream.
If I can I would like to send someone here @ troutnut a pic of these this summer.