Great Blue Heron
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40 free Great Blue Heron trivia questions with answers — trivia quiz, new questions added Oct 2026.
The great blue heron is the tall, patient wader that turns up on almost every pond, marsh and shoreline in North America. It looks slow, even sleepy, right up to the instant it strikes. Behind that stillness is a bird with some odd equipment and some odder habits, which is what makes it such good trivia. These questions cover the fun facts people actually look for: how big the bird really is and how little it weighs, how it hunts and what it will swallow, how it keeps its feathers clean, where and how it nests, what dares to attack it, and which relatives around the world look most like it. A few questions follow the heron into art, law, baseball and soccer. The quiz suits backyard birders, students, paddlers and anyone who has watched one of these birds stalk the shallows and wondered what it was up to. Every answer comes with a short explanation, so you learn something even when you miss.
30 of 40 questions with answers and explanations. Play the quiz
Q 01A great blue heron can stand four feet tall, yet roughly how much does a typical adult weigh?
About 5 pounds
About 5 pounds, give or take one, is all a typical four-foot adult weighs, thanks in part to its hollow bones. Its wings can still span six to seven feet.
Q 02Great blue herons are widespread and familiar, yet people often mistakenly call them by which other bird's name?
Crane
Crane is the label many people reach for, but the two belong to different families. A sandhill crane is a much bulkier bird than a great blue heron.
Q 03How does a great blue heron usually carry its long neck in flight, unlike a stork or an ibis?
Curled into an S
Curled into an S, the neck rests back on the shoulders while the long legs trail behind. Specially shaped neck bones make the tight fold possible.
Q 04A high share of rod-type photoreceptors in a great blue heron's eyes gives the bird which hunting advantage?
Night vision
Night vision lets great blue herons keep fishing after dark. They feed by day and by night, and are busiest around dawn and dusk.
Q 05In one recorded fight, a great blue heron fatally wounded which attacking bird of prey before dying itself?
Golden eagle
A golden eagle was mortally wounded by the heron it attacked, though the heron also died of its injuries. An adult's size and dagger-like bill make it risky prey for any predator.
Q 06Which Major League Soccer club's crest shows two great white herons whose interlocking legs form the letter M?
Inter Miami CF
Inter Miami CF set the herons on its crest around a sun with seven rays, a nod to the shirt number that co-owner David Beckham often wore as a player.
Q 07Great blue herons crumble special chest feathers into a powder and work it through their plumage to remove what?
Slime and oil
Slime and oil from fish come away with the powder, which the heron uses like a washcloth as it preens. The chest feathers that supply it never stop growing and fraying.
Q 08The recovery of which mammal has given great blue herons in the northeastern US new swamps for feeding and nesting?
Beaver
Beaver numbers have rebounded across the northeastern US and southern Canada, and their ponds form a patchwork of swamps and meadows that suits hunting and nesting herons.
Q 09Florida's all-white great white heron, now usually treated as a form of the great blue heron, was long classed as what?
A separate species
A separate species is how the great white heron was long classified, and some experts still argue for it. It averages larger than other great blues and keeps mostly to salt water.
Q 10Great blue herons swallow their catch whole, and some have died doing what with prey too large for them?
Choking on it
Choking on it is a real risk for a bird that gulps its food down in one piece. Herons usually go for fish only four to eight inches long.
Q 11Great blue herons groom their feathers with a fringed, comb-like claw found on which part of the body?
The middle toe
The middle toe of each foot carries the fringed claw. A heron runs it through the powdery down on its chest as it preens.
Q 12The great blue heron's slightly smaller counterpart across Europe and Asia is a heron named for which colour?
Grey
The grey heron is the Old World counterpart, with a plain pale neck and none of the great blue's brown tones. Strays occasionally turn up on North America's northern coasts.
Q 13The world's largest heron, an African bird about twice as heavy as a great blue heron, carries which legendary name?
Goliath
The Goliath heron of sub-Saharan Africa can stand five feet tall. Only it and Asia's white-bellied heron outgrow the great blue.
Q 21Great blue herons, like most birds in the United States, are legally protected by which century-old federal law?
Migratory Bird Treaty Act
The Migratory Bird Treaty Act of 1918 protects the heron itself along with its feathers, eggs and nests. That holds even for a heron caught raiding a garden pond.
Q 22Which word for a great blue heron nesting colony was borrowed from a European member of the crow family?
Rookery
Rookery comes from the rook, a crow relative that nests in crowded treetop colonies. A colony made up of herons is more precisely called a heronry.
Q 23Which Vancouver landmark holds one of North America's largest urban great blue heron colonies, beside its tennis courts?
Stanley Park
Q 14Which 18th-century naturalist first formally described the great blue heron, in a work called Systema Naturae?
Carl Linnaeus
Carl Linnaeus named the bird Ardea herodias, pairing the Latin and the Ancient Greek words for a heron. The scientific name therefore says the same thing twice.
Q 15Which artist painted the great blue heron as Plate 211 of his monumental book The Birds of America?
John James Audubon
John James Audubon painted the heron in watercolour, and Robert Havell's London workshop engraved and coloured the plate. The original is held by the New-York Historical Society.
Q 16In Nova Scotia, which flatfish was found to make up 98% of the great blue heron's diet?
Flounder
Flounder was nearly the whole menu for Nova Scotia's herons. Elsewhere the catch follows what is plentiful, from sticklebacks in British Columbia to bass in California.
Q 17Before gulping down a spiny fish, a great blue heron often does what to break or relax its sharp spines?
Shakes it
The heron shakes it until the spines break or relax, then gulps the fish down. Smaller prey is simply grabbed in the bill, while larger fish are speared.
Q 18A study at fish hatcheries found that visiting great blue herons mostly caught stock in what condition?
Diseased
Diseased fish made up most of the herons' catch, and they would have died shortly anyway. Sick fish linger near the surface, where a wading bird can reach them.
Q 19Along the Pacific coast, great blue herons often wait for a meal while standing on floating beds of which seaweed?
Kelp
A bed of kelp makes a floating perch for a bird that normally hunts by wading. The heron stands poised on top and waits for a meal to swim by.
Q 20Cornell's bird lab suggests adding what to a garden fish pond to protect the fish from a visiting great blue heron?
A drain pipe
A drain pipe laid in the pond gives the fish somewhere to hide when a heron comes hunting. Great blue herons are regular visitors to backyard goldfish ponds.
Stanley Park has had herons nesting in it since at least 1921. Its colony, which sits close to the main entrance, has held as many as 183 nests.
Q 24During courtship, a male great blue heron repeatedly presents the female with which gift?
Sticks
Sticks are the male's offering: he gathers them from the ground, from trees and even from unguarded nests. The female weaves them into a platform that can grow four feet across.
Q 25How does a great blue heron parent deliver a meal of fish to the chicks waiting in the nest?
Regurgitating it
Regurgitating it is the method both parents use. A parent feeding young chicks eats up to four times as much as one that is still sitting on eggs.
Q 26Great blue herons pair up for a single breeding season, but what do most do the following year?
Choose a new mate
Most choose a new mate each year, even though the nests themselves are reused for many years. Males reach the colony first and court passing females from a nest site.
Q 27Which tree-climbing mammal is known to take both large nestlings and many eggs from great blue heron colonies?
Raccoon
The raccoon is a nimble nest raider, which is one reason heron colonies favour islands and flooded trees that are hard to reach on foot. Ravens and crows steal eggs too.
Q 28A great blue heron defending its feeding spot approaches an intruder with wings spread and its bill pointing where?
Toward the sky
Toward the sky goes the bill, with the head thrown back and the wings outstretched. Gulls and even people can be on the receiving end of the display.
Q 29Which sound does an alarmed great blue heron make, usually three or four times in a row?
A hoarse croak
A hoarse croak, repeated three or four times, is the alarm call. Great blue herons are fairly quiet for their family, though they have up to seven different calls.
Q 30Beyond the mainland Americas and the Caribbean, great blue herons also live on which Pacific island group?
The Galápagos
The Galápagos host breeding great blue herons far out in the Pacific. Wanderers have also been recorded in Hawaii, Greenland and England.