Harpy Eagle
0Loading crowd target
0Loading crowd target
7correct to beat the crowd
40 free Harpy Eagle trivia questions with answers — trivia quiz, new questions added Oct 2026.
The harpy eagle is the heavyweight hunter of the American tropics, a rainforest raptor built for power in tight spaces. Few people ever see one in the wild, which is part of why nearly every detail about it sounds like a tall tale. This quiz turns the best harpy eagle fun facts into questions: how big it gets, what it eats and how it catches a meal, how a pair raises a chick, where it lives, and which birds around the world are its rivals and relations. A few questions follow it into myth, film, money and national symbols. It suits bird lovers, students and teachers, and anyone who has stood in front of one in an aviary and wondered what those feet can do. Every answer comes with a short explanation, so you will finish knowing far more about harpy eagles than when you started.
30 of 40 questions with answers and explanations. Play the quiz
Q 01A harpy eagle's rear talons grow about as long as the claws of which large North American predator?
Grizzly bear
Grizzly bear claws and a harpy eagle's rear talons both reach three to five inches, giving the bird the largest talons of any living eagle.
Q 02Which tree-dwelling mammals, plucked from high branches, make up most of a harpy eagle's diet?
Sloths
Sloths made up 79 percent of the prey delivered to one studied Amazon nest, and a harpy eagle can pluck a full-grown one off a branch in flight.
Q 03Which country made the harpy eagle its national bird and shows one on its coat of arms?
Panama
Panama declared the harpy eagle its national bird in 2002, after a campaign in schools and communities taught people that the huge raptor is not dangerous.
Q 04The harpy eagle has a ring of face feathers that funnels sound to its ears, like which other birds?
Owls
Owls are famous for the facial disc, yet the harpy eagle is one of the few daytime raptors with one, and it can raise or lower the feathers at will.
Q 05What surprising thing can a harpy eagle do with its head to get a better look at prey?
Turn it upside down
A harpy eagle can turn it upside down to study a target, and its eyes can pick out an object under an inch wide from 200 metres away.
Q 06In a harpy eagle pair, which bird is typically almost twice the weight of the other?
The female
The female can weigh up to 20 pounds, nearly double her mate, so she tackles the heaviest prey while he catches smaller animals more often.
Q 07The harpy eagle is named after winged, clawed monsters from which ancient mythology?
Greek
Greek myth describes the harpies as birds with the faces of women, sent to punish the Thracian king Phineus by spoiling every meal set before him.
Q 08A harpy eagle's legs are often said to be as thick as which part of a small child?
Wrist
Wrist is the usual comparison, and those thick legs drive talons that can crush the bones of prey on impact.
Q 09The harpy eagle's long tail is often compared to which part of a boat?
Rudder
Rudder is the comparison biologists use: short wings and a long steering tail let the harpy eagle weave through dense forest at up to 50 miles per hour.
Q 10What usually happens to the second egg in a harpy eagle nest once the first chick has hatched?
It is abandoned
It is abandoned, because raising a single chick takes so much effort that the second egg is thought to be only a backup in case the first fails.
Q 11The harpy eagle is most common in which South American country?
Brazil
Brazil holds most of the Amazon basin, the harpy eagle's last great stronghold, though the bird has been all but wiped out of the country's Atlantic rainforest.
Q 12Which bird, with a ten-foot wingspan, keeps the harpy eagle from being the largest bird of prey?
Andean condor
Andean condor wings can span over three metres, but that giant is mainly a scavenger, while the harpy eagle kills its own large prey.
Q 13Alongside shooting, what is the main threat to the survival of harpy eagles across Latin America?
Deforestation
Deforestation hits harpy eagles hard because each breeding pair needs several square miles of undisturbed forest with tall trees for nesting.
Q 21The mythical harpies behind the harpy eagle's name take their own name from a word meaning what?
Snatchers
Snatchers is the literal sense of the old word, which suits a bird that grabs heavy prey from the treetops and flies off without landing.
Q 22Which Asian country's giant national eagle was once thought the harpy eagle's nearest relative?
Philippines
Philippines forests hold the Philippine eagle, a look-alike giant long known as the monkey-eating eagle, but DNA studies showed the two are not close kin.
Q 23Which huge tropical island is home to a forest raptor sometimes also called a harpy eagle?
New Guinea
New Guinea has the Papuan eagle, a long-legged hunter of tree-dwelling marsupials that genetic studies place close to the harpy eagle of the Americas.
Q 14Which feature on a harpy eagle's head fans out when the bird feels threatened?
Crest
Crest is the word for the long dark feathers on the crown, which the harpy eagle fans out when alarmed and flattens again when calm.
Q 15How does a harpy eagle most often hunt in the rainforest?
Perch and wait
Perch and wait saves energy: a harpy eagle may sit silently on a branch for up to 23 hours, and you will never see one soaring above the rainforest.
Q 16Which towering tree, also called the silk-cotton tree, is the harpy eagle's favourite nesting site?
Kapok
Kapok trees rank among the tallest in South America, and a local belief that felling one brings bad luck may help protect the eagles' nests.
Q 17Which famous American zoo was for years the only one in the United States to breed harpy eagles?
San Diego Zoo
San Diego Zoo began hatching harpy eagle chicks in 1992, and two of its young birds were later released into the rainforest.
Q 18The harpy eagle's range runs from northern Argentina all the way up to the south of which country?
Mexico
Mexico marks the northern limit, where the harpy eagle once reached Veracruz but today probably survives only in the forests of Chiapas.
Q 19What do conservationists call the harpy eagle, because saving it protects everything in its forest?
Umbrella species
Umbrella species need so much intact habitat that guarding a harpy eagle's territory also shelters the monkeys, trees and other wildlife living there.
Q 20Carl Linnaeus, naming the harpy eagle in 1758, first placed it in a genus with which other birds?
Vultures
Vultures shared the genus Vultur with the harpy eagle in his catalogue, until a French ornithologist gave the bird its own genus, Harpia, in 1816.
Q 24What do harpy eagle parents keep bringing to the nest after hatching, possibly to keep insects away?
Fresh green twigs
Fresh green twigs keep arriving long after the nest is built, and some researchers think the greenery also keeps the chick cooler.
Q 25A male harpy eagle arriving at the nest with food makes calls likened to which farmyard bird?
Goose
Goose is the bird observers compare him to, yet away from the nest the harpy eagle is almost completely silent.
Q 26What do paired harpy eagles do with their beaks while nest building, apparently as a bonding ritual?
Rub them together
Paired harpy eagles rub them together for a few seconds between loads of sticks, and the two birds are believed to stay partners for life.
Q 27Which Latin American country printed a harpy eagle on the back of one of its banknotes?
Venezuela
Venezuela showed the harpy eagle on a bolívar note, and the country also sent birds from its zoos to help found a captive breeding flock.
Q 28In which Central American country were captive-bred harpy eagles freed in the Rio Bravo reserve?
Belize
Belize had lost almost all of its harpy eagles before a restoration project began releasing captive-bred birds, one of them named Hope.
Q 29What colour are a harpy eagle's massive feet, in sharp contrast to its black talons?
Yellow
Yellow feet and toes carry black talons up to five inches long, and the hooked bill is black as well.
Q 30A live harpy eagle played an extinct giant eagle from which country in the BBC's Monsters We Met?
New Zealand
New Zealand was home to Haast's eagle, the largest eagle known to have existed, which hunted giant flightless moa until both died out.