I have a collection of flies that I have tied myself. They all look like belly button lint, which is not a natural food source for trout. I sure could benefit from the websites listed below. A comprehensive list of tying sites Real-time stream data Fish are smart. I repeat this often when I get skunked on fishing trips.
Fish find eddies where they can hide from a river's strong currents.
When the volume of water in the river gets too high the currents become incredibly strong, and fish are less likely to surface for food. High currents are not ideal for fishing. Before going out to a river, an angler wants to know how much water is coursing through the river bed. The bugs on a river can vary dramatically based on the time of year, water conditions, weather patterns, or mating habits of the bugs. An angler really loves to know what hatches, or clusters of bugs, to expect before hitting the water.