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Brown Bullhead

Brown Bullhead

Brown Bullhead are native catfish found statewide throughout Illinois, ranging from glacial lakes in northeastern Illinois to floodplain lakes along the middle Illinois River and swamps in southwestern Illinois.

These hardy fish are remarkably tolerant of poor water quality, surviving in waters with dissolved oxygen levels as low as 0. 2 ppm and temperatures up to 97°F, making them survivors in conditions where other fish struggle.

Scientific Name: Ameiurus nebulosus

Physical Characteristics:
  • Average 7-15 inches in length with a typical 8-inch average, though they can reach up to 20 inches and weigh 5-7 pounds.
  • They feature a green-brown to blue-black coloration with dark blotches along the sides, dark chin barbels, a squared tail fin, and characteristic saw-like teeth on their pectoral spines.

What to know

Habitat Distribution

  • Found statewide throughout Illinois.
  • They prefer deeper, clearer waters with moderate aquatic vegetation compared to other bullhead species, though they can tolerate muddy, low-oxygen environments.

Key Locations

  • Glacial lakes in northeastern Illinois, floodplain lakes along the middle Illinois River, swamps in southwestern Illinois.

Specific Spots

  • Target them in slow-moving waters with muddy bottoms, swamps, ponds, lakes, and rivers, particularly areas with abundant vegetation and soft substrates.
  • Fish near shorelines in muddy areas, around submerged logs, stumps, rocks, and in areas with overhanging vegetation.
  • Target depths where aquatic vegetation is present, and focus on areas with soft mud or muck bottoms.

Brown Bullhead FAQ

Answers from onWater's species guide.

What are the best lures and bait for Brown Bullhead in Illinois?

Top baits include nightcrawlers, earthworms (especially those from compost piles which have stronger scents), chicken livers, cut bait, minnows, corn, worms, and crayfish. Jigs fished slowly on the bottom.

When is the best time to fish for Brown Bullhead in Illinois?

Year-round but most active during warmer months of late spring through summer. Avoid fishing during spawning from April to June.

How do you catch Brown Bullhead in Illinois?

Bottom fishing, simple still fishing, bait casting, drift fishing, and spinning techniques. Jigs can also be effective when fished slowly on the bottom.

What do Brown Bullhead eat?

As omnivorous bottom feeders, they eat crayfish, insects, snails, plants, small fish, mollusks, worms, leeches, and even corn.

Where do Brown Bullhead live in Illinois?

Found statewide throughout Illinois. They prefer deeper, clearer waters with moderate aquatic vegetation compared to other bullhead species, though they can tolerate muddy, low-oxygen environments.

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