They have a small mouth, a solid black ear flap, and their colors vary, running from nearly black or purplish to dark brown, green or gold. Breeding males have a vivid blue head and throat and a bright-orange breast. Bluegills will eat almost anything you throw overboard. The flathead catfish is most common in deep pools and what it lack in looks, it makes up for in size and good taste. Many weigh 3 to 10 pounds, but 25 to 50 pounders are pretty common.
Color is yellow to light brown, usually mottled with dark brown or black.
The tail is only slightly forked, and the lower jaw projects out from the flattened head. Most are caught on live minnows, bream or goldfish. They are short, chubby catfish with a slightly notched tail, and unlike the flathead cat, the lower jaw doesn't stick out noticeably. The yellow bullhead, the most widely distributed species, has white or yellow chin barbels and prefers areas with little current in clear, rock-bottomed streams. Chicken liver and earthworms are the most popular bullhead baits.