Brown trout can be identified by their golden brown coloration and darks spots with pale halos. The spotting is commonly black but sometimes red or yellow. Brown trout are considered to be native to Europe and Asia, but are prevalent across the globe including North America, South America, Australia and New Zealand. Depending on the location, brown trout can mature to only a few pounds all the way to over 40 pounds. They have a long life expectancy and can live well past 10 years in some instances. Brown trout are active predators and will feed on smaller fish (including young brown trout), common insects found in the habitation, and even some small terrestrial animals like mice or baby birds. They typically feed in the late afternoon and after dark or very early morning. Brown trout spawn in the fall in shallow water with gravelly bottoms.