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Flathead Catfish
Freshwater

Flathead Catfish

Pylodictis olivaris · Ictaluridae

Also known as: Shovelhead, Yellow cat, Mud cat, Appaloosa

The live-bait specialist of the family, and the last of the three to spawn. Flatheads stop feeding while actively spawning, which makes the early-July lull biological rather than bad luck.

Typical size
5–30 lb
Max size
Can exceed 100 lb.
Water
Freshwater
Best season
June before the spawn, and again from late July into autumn.

Identification

A broad, flattened head and a squared — not forked — tail, which separates it instantly from channel and blue catfish. Mottled yellow-brown to olive, with a projecting lower jaw.

Habitat & Range

Larger pools and deep holes in rivers and reservoirs, tight to old brushy tangles, submerged logs and undercut banks. Spawning fish excavate a saucer-shaped depression inside a natural cavity or beside a large submerged object.

Native to the Mississippi, Missouri and Ohio basins and the Gulf drainages; widely introduced elsewhere, where it is often an aggressive predator on native species.

Diet & Feeding

Almost entirely live fish and crayfish, with mussels, snails and insects taken occasionally. Flatheads rarely take cut or prepared bait, which is the practical difference from channel cats.

Spawning & Reproduction

Spawns in late June and July, distinctly later than channel catfish. The egg mass is a compact golden-yellow clump of 100,000 or more, and a parent agitates it continuously with fin movements to keep it oxygenated and free of silt. The male guards the fry for about a week after hatching.

Spawning windowSource-verified

Run begins
Jun 24
Peak
Jul 5
Ends
Jul 21

No temperature is given because no agency source publishes a flathead-specific one. Oklahoma's ODWC lists 75F, but that text is word-for-word identical on its channel and blue catfish pages, so it is boilerplate rather than a species finding, and it contradicts Missouri's explicit statement that flathead spawn later than channel. Window dates are MDC's observed north Missouri range: the last week of June to the third week of July.

Timing is modelled for a mid-latitude reference population — fish the thermometer, not the calendar. Based on 3 cited sources.

How to Catch

Live bait, at night, tight to timber and deep holes. Plan around the spawn rather than through it: Missouri's agency notes flatheads feed heavily before and after spawning but seldom while actively spawning, which makes the first weeks of July the year's predictable dead spot.

Best techniques

  • Live baiting
  • Bank fishing at night
  • Jug lining
  • Drifting

Lures & baits

  • Live bluegill
  • Live shad
  • Green sunfish
  • Crayfish

Best season: June before the spawn, and again from late July into autumn.