The art of matching the color and size of eggs that are being eaten is an art form just like matching the hatch of emerging dry flies, so egg flies are matching a natural food! Not all salmon eggs are the same. Spawning King and Chums have much larger eggs than sockeye's. You can find that the hungry trout. steelheads have discerning tastes. They will only target eggs of a certain color and size. Eggs that are laid by one particular salmon species and leave the others. It is therefore important to understand the color differences and what is the favorite color and size of the eggs eaten by your target fish. Most eggs are a very bright orange when first laid. They gradually change shade. They take on a milky white tint as they develop or decompose. You will find your fish lurking downstream, gobbling up the loose salmon eggs as they tumble from their redds and roll along the streambed as the salmon complete their spawning. Generally salmon lay between 2,500 to 7,000 eggs depending on the species and size of the fish. Chinook Salmon generally produce the most and largest eggs.
Salmon egg flies should be put on a tapered leader and cast upstream. Allow the salmon egg fly to drift downstream naturally. If the salmon flyline starts to get ahead of the salmon egg fly and drag it faster than the natural drift of the current perform an upstream mend flicking the flyline behind the dry fly so that it continues its drift naturally. When it reaches the end of its drift do not retrieve immediately but allow the fly to hang enticingly at the end of its downstream journey, often the egg fly hanging above or near a salmon can be enough to provoke action from the fish.