Bullhead Catfish: Black, Brown and Yellow Bullheads Compared

Bullhead catfish are the small, square-tailed catfish of ponds, creeks and quiet backwaters across the eastern two thirds of North America. There are three: black, brown and yellow. Most anglers meet them before any other catfish, and many never learn to tell them apart. They look alike, live in overlapping water and bite the same nightcrawler. What separates them is on the chin and the pectoral spines, not in the color the names promise.

The all-tackle world record black bullhead, 8 lb 2 oz, was caught on bread in a Long Island lake in 2015. New York’s own record book still lists a 7 lb 7 oz fish from 1993, caught on Wonder Bread.

Black, brown or yellow: how do you tell them apart?

The tail settles the genus, Ameiurus. A bullhead’s tail, the caudal fin, is squared or only slightly notched; channel and blue catfish have deeply forked tails. The flathead has a square tail too, but a projecting lower jaw, and it grows fifty times bigger. Tail, jaw and size settle bullhead vs catfish against all three big catfish.

Within the genus, color is the least reliable mark: a black bullhead can be yellowish and a yellow bullhead can be dark. Missouri’s field guides use three marks instead. They are the color of the chin barbels, the anal-fin ray count, and whether the rear edge of the pectoral spine carries sawlike teeth.

The spine test is the one to learn, because it works in the dark with a fish in your hand. Grasp the pectoral spine between thumb and forefinger and pull outward, as Missouri’s guide describes. On a brown or yellow bullhead the teeth catch the skin like a tiny saw; on a black bullhead the spine slides smooth.

The brown bullhead has one more mark of its own: a barbel at the corner of the mouth so long that in adults it reaches well behind the base of the pectoral fin. Iowa’s biologists add the pale band across the base of the tail as the black bullhead’s giveaway, a mark the other two never show.

Two cautions. The ray counts are where the field guides disagree: Missouri separates black (17–21) from brown (22–23), while the Florida Museum gives both as 19–23. So the counts reliably separate only the yellow bullhead, and the barbel color and the spine teeth do the rest. And the white catfish, Ameiurus catus, of the Atlantic and Gulf slopes is a bullhead by genus with a moderately forked tail. It is the one most often confused with a small channel catfish.

Where do bullheads live?

The black bullhead’s native range runs through the Great Lakes, Hudson Bay and Mississippi basins, from New York to Saskatchewan and Montana and south to the Gulf. It is the bullhead of prairie ponds and muddy, sluggish water, and it is anything but rare: Iowa calls it the most common of its three bullheads, Missouri the most common in the north and west of the state. The brown bullhead is the eastern and northern fish, at home in clear, weedy lakes and ponds. It has been introduced far outside that range, stocked across the country for food and sport. The yellow bullhead sits between them, in the vegetated backwaters, overflow pools and clear ditches of the Midwest and South. In South Carolina it holds in the pools of small and medium rivers, over soft silt or leaf litter.

In Iowa, where the black bullhead is the commonest of the three, the water is a plain list: backwaters, oxbows, sloughs, marshes, ponds, natural lakes and the pools of streams that stop flowing in summer. The biggest populations are in the slow reaches of small streams.

The fish tolerates silt, pollution, heat and low oxygen, which is why a farm pond that holds nothing else holds bullheads. The brown bullhead prefers water of 77–88 °F (25–31 °C) and tolerates 97 °F (36 °C), warmer than any bass would choose. The cost is stunting. In a crowded Iowa pond bullheads seldom pass 7–9 in (18–23 cm); the same fish in a big northern lake reaches 2 lb (0.9 kg) and more. Wisconsin’s growth table puts a bullhead at 2.8 in (7 cm) after one year, 7.7 in (20 cm) after two and 13.5 in (34 cm) at ten. Few black or yellow bullheads live past 5 years; a brown bullhead typically reaches 6–8.

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When do bullheads spawn and bite?

Bullheads spawn in May and June in Missouri and Iowa, and Wisconsin DNR puts the spawn at 70–77 °F (21–25 °C) for all three species. South Carolina puts the yellow bullhead’s spawn at about 75–80 °F (24–27 °C); the Ontario life-history database gives the brown bullhead a wider window, 57–77 °F (14–25 °C).

The female fans out a saucer-shaped nest, often under a log or rock, in about 2–4 ft (0.6–1.2 m) of water in Iowa. She lays 2,000–6,000 eggs that hatch in a week or less. One parent stays on the nest, fanning the eggs and chasing off the minnows and sunfish that hover close for an unguarded moment. The young then move in a compact black ball near the surface, herded by the adults until they are almost 2 in (5 cm) long. Anyone who has looked into a pond in June has seen one.

They feed at night and on the bottom. Missouri’s biologists found adults mostly inactive by day: they leave the deeper parts of a pool in the early hours of darkness to feed and return shortly before dawn. Adults eat aquatic insect larvae first, then crayfish, snails, worms, plant matter and the occasional small fish. The table runs the year by water temperature; the catfish water-temperature page does the same for the channel, blue and flathead.

The spring rows follow In-Fisherman’s Lake Champlain account, where the bullhead bite peaks in March while the trout streams are still iced; the summer rows are Missouri’s.

How to catch them

There is no simpler fishing. Bullheads are not selective: the bait lists run from nightcrawlers, crickets and minnows to corn, cheese, hot dogs, liver and bread. The nightcrawler is the standard because it stays on the hook and smells right, and Iowa’s tip is half a nightcrawler rather than a whole one. The best catfish bait page ranks the options for the whole family.

The rig is a bait hook with a weight above it, nothing more. A #4 to #2 hook covers a half nightcrawler, the sizes the hook size chart gives for small catfish baits. In-Fisherman goes to No. 2 through 1/0 and asks for a long shank: bullheads are notorious hook swallowers, and a long shank gives the pliers something to grip. A split shot or two pinched above the hook holds the bait on the bottom in still water. A light slip sinker does the same where a creek moves; both are drawn on the catfish rigs page.

Any light rod and 6–10 lb line will do; the world-record brown bullhead came in on 6 lb line and the black on 10 lb. Carry needle-nose pliers for the deep hooks, or fish a small circle hook. It takes the fish in the corner of the mouth and saves the ones you release.

Fish from dusk into the night, in the shallows of ponds and creek pools and along weed edges. In small waters the day bite does not really stop, as Take Me Fishing puts it. Still-fishing from the bank with a cane pole or a rod and reel is how Missouri describes the sport; In-Fisherman’s kit list is a five-gallon pail and a folding chair. When the first bullhead bites, stay put: the next one is beside it.

For a child with a bobber and a worm, a bullhead pond on a summer evening is the best first fishing there is. A push-button kids fishing pole rigged with a #8 hook, a split shot and a bobber catches them as surely as it catches bluegill.

Do bullheads sting?

Not with their whiskers. The three spines, one in the dorsal fin and one in each pectoral fin, lock upright when the fish is stressed. That defense makes a bullhead hard for a heron or a bass to swallow, and it works on hands too. The mouth is ringed with broad bands of tiny, needle-shaped teeth, and the fish can survive out of water for hours. The spines are needle-sharp and carry a mild venom that causes swelling and a burning ache. The sawtoothed pectoral spines of brown and yellow bullheads tear as well as puncture.

Hold a bullhead the way Wisconsin’s fish technician holds one for the knife: thumb up, the fish belly down between the first two fingers, each finger slipped under a pectoral spine. Catfish Edge adds the last detail: the web of the thumb rests behind the dorsal spine. The how to hold a catfish page shows the grip and the first aid: clean the puncture, and hot water eases the pain more than ice.

Are bullheads good to eat?

Yes, with a condition. The meat is firm and mild, and bullheads from clean, cool water are as good as any small catfish. From a warm, muddy, overcrowded pond they taste like the pond. In-Fisherman’s rule is that the flesh turns muddy as summer warms the water, so the fish of early spring are the ones to keep, and any dark yellow or red streak in a fillet is cut out. South Carolina calls the yellow bullhead edible but the least prized catfish, which says more about its usual water than about the fish.

Wisconsin DNR’s method skins one without a board or a nail, in less than a minute each with a little practice:

1. Hold the fish thumb up, belly down between the first two fingers, a finger under each pectoral spine. With a sharp knife, cut into the back at an angle toward the head from directly behind the dorsal spine, down to the backbone, without cutting through it.
2. Bend the body sharply down, breaking the spine and exposing the air bladder and entrails. Reverse the knife and slit the skin down the middle of the back from the edge of the first cut to the tail.
3. Grasp the body between thumb and forefinger and pull in opposite directions. The head, skin and entrails come away in one piece, leaving the flesh on the backbone. Roll it in cornmeal and fry.

State health advisories for mercury apply by waterbody, as they do for every fish. Bullheads are short-lived and small, which keeps them near the bottom of the list.

How big is a record bullhead?

Those are extraordinary fish. The state record books show what a big bullhead really is, and 3 lb (1.4 kg) is a trophy anywhere. New York’s list is the odd one: it carries the 2009 brown bullhead that is also the world record, but its black bullhead record is still Kevin Kelly’s 7 lb 7 oz from Mill Pond in 1993. The heavier 2015 fish the IGFA certified is not on it.

South Carolina’s 6 lb 6.3 oz yellow bullhead of 2009 outweighs the IGFA all-tackle record by a third of an ounce and never replaced it. Iowa’s rules for a record explain why the lists move so slowly. The fish is weighed on a scale certified for trade, preferably alive and never frozen, and must beat the old record by an ounce or 5 percent, whichever is less. The everyday bullhead weighs under a pound. Wisconsin sets no limit at all; the state pages carry the current rules everywhere else.

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Know what the catfish want tonight before you leave the house

The Catfish Cheat Sheet. Take one water temperature reading, find your season on the two-page sheet, and it tells you which catfish is feeding, where it sits and what goes on the hook. Behind it, thirteen more pages: a page each for channel, blue, flathead and bullhead, the rigs, the bait, the trip and the hold.

• The temperature that shuts channel cats down while blue cats keep biting all winter
• Five rigs drawn, three tied step by step, and why you never strike with a circle hook
• The bait and hook for each catfish, from punch bait on a #4 treble to a live bluegill on a 7/0 circle
• A catfish trip in nine steps, with the "Before you go" checklist and what a bite feels like on a tight line

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