Cluster Egg

A Cluster Egg in fly fishing is a type of egg fly pattern that imitates a cluster or grouping of fish eggs. This pattern is designed to replicate the natural presentation of eggs when fish are actively spawning. It is particularly effective for species like trout, salmon, and steelhead during times when they are feeding on eggs.

Anglers typically use Cluster Eggs in rivers and streams during spawning seasons, presenting them in areas where fish are actively feeding on eggs. These patterns can be effective in enticing strikes from fish seeking to capitalize on a concentrated source of food.

Tie a single micro strand of contrasting yarn—like a tiny white or chartreuse “hot speck”—deep inside the cluster. It’s invisible at arm’s length but flashes intermittently underwater as the egg mass rolls. That subtle flicker mimics the natural translucence and internal shadows of real egg clumps, making fish commit far more aggressively, especially in slightly off-color water.