Stare into the water and look for movement – do you see a fish making its way through the Kline Kill? It might be a brown trout! Brown trout are mostly brown, with dark spots on their backs and sides. Most are usually about ten inches long. They are related to another large fish – the salmon. Brown trout prefer cool water, so they are more active at dawn and dusk, though you may find them in deeper, shadier pools of water during the day. They usually like to eat insects, clams, and snails, but will sometimes eat small fish as well.