Baetis sp. AKA  the blue-winged olive are on the water now!

Male dun

Female dun

BWO are small and hard to see on the water.  This one drifted in to some quiet water close to shore. In choppy water you may just see trout feeding and no bugs on the water.  Even a size 18 will look big next to this one.

A typical winter BWO male resting on stem of dead grass.

A small nymph pattern fished a few inches below the surface will often prove to be the most effective tactic, especially during lulls in hatch activity.

When your dry flies get ignored try a small emerger pattern like this CDC emerger. 

The snowshoe hare wing dun is one style I often turn to.  It it doesn’t work I then often switch to an emerger pattern or one of the two fry flies below.

A CDC dun pattern.

A Compara-dun