Facts About Emus
Published October 9, 2026 · FactsSeeker
Emus are large Australian ratites with adaptations for running, communication, and seed dispersal. Their life history also includes unusual parental care: males incubate eggs and guide chicks after hatching.
Emus are ratites
Emus belong to the ratites, a group of flightless running birds. The same group includes kiwis, ostriches, cassowaries, and rheas, and the source places these birds in the Southern Hemisphere. This background helps explain why emus are built more for running than for flying. [1]
Females are the larger sex
The emu is described as the second-largest living bird, with the ostrich identified as the largest. Adult females are larger and heavier than adult males, so size alone does not point to a male emu. This reverses the expectation people may have from some other birds. [1]
Their feathers look hairlike
Emu feathers do not lock together the way many bird feathers do. Each follicle grows a double-shafted feather, and the barbs hang loosely rather than using hooks to fasten to neighboring barbs. That structure gives the plumage a hairlike look and also makes it less water-resistant than the feathers of many other birds. [1]
They are built for fast running
Emus have small, nonfunctional wings but strong legs suited to travel. The source says they can sprint at 30 miles (48 kilometers) per hour for quite a distance, and their stride while running can be almost 9 feet (2.7 meters) long. Those features make running central to their survival strategy. [1]
They can jump and defend themselves with their feet
Powerful legs give emus more than speed. They can jump 7 feet (2.1 meters) straight up, and if escape is not enough, they can strike and rip with heavy feet and nails. Their feet have three toes and a reduced set of bones and muscles compared with flying birds. [1]
A throat pouch helps make loud calls
Emus have a pouch in the throat that is part of the windpipe and functions in communication. When inflated, it helps produce booming, drumming, and grunting sounds. These calls are associated with courtship and breeding and can be heard up to 1.2 miles (2 kilometers) away. [1]
Their diet changes with the season
Emus are omnivores that search for food during the day. The source lists plant foods such as acacia seeds, new grass shoots, cassia leaves and pods, and fruit, along with animal foods such as caterpillars, beetles, grasshoppers, crickets, lizards, moth larvae, and ants. Seasonal availability strongly shapes what they eat. [1]
They help spread seeds
Emus play an ecological role as seed dispersers. Seeds they swallow whole often pass through whole, and the moving bird leaves droppings that contain those seeds. This means feeding and wandering can help plants move across the landscape. [1]
They avoid some habitats despite a broad range
Emus are described as common through most of mainland Australia, but they avoid big cities, dense forests, and deserts. The same source also lists New Guinea, Indonesia, Solomon Islands, and the Philippines in the emu range. Because the statement is broad, it is best read as a source description rather than a detailed local distribution map. [1]
They may gather into large moving flocks
Although emus are usually solitary, they can form enormous migratory flocks when moving toward better food resources. These flocks may travel long distances for food and water. In Western Australia, the source describes a seasonal pattern of northward summer movement and southward winter movement. [1]
Males incubate the eggs
Emu pairs form in summer and remain together into fall, when the first clutch is laid. The male builds a ground nest, and the female lays 5 to 15 avocado-green eggs over several days. After that, the male incubates for about 8 weeks, rising mainly to turn the eggs and tidy the nest. [1]
Females can lay more than one clutch
After laying, a female may leave the male to incubate and may or may not mate again. In a good season, the source says a female emu may lay three complete clutches. That breeding pattern lets one female’s reproductive effort involve more than one nesting male. [1]
Emu eggs are unusually large and dark green
Emu eggs are dark green, shiny, and pitted on the surface. The source compares one emu egg’s weight and volume with 10 to 12 chicken eggs. It also gives egg size as 5 x 3.5 inches (13 x 9 centimeters) and egg weight as 1 to 1.4 pounds (450 to 650 grams). [1]
Chicks can move soon after hatching
Emu chicks are precocial, meaning they are comparatively active soon after hatching. They can walk just minutes after hatching and can leave the nest at about three days old. Even so, they usually remain with their father for about 18 months while he teaches them to find food and stay safe from dingoes and foxes. [1]
Growth and lifespan differ by setting
Emus are full-grown at 12 to 14 months but do not reach sexual maturity until about 2 years of age. The listed lifespan is up to 35 years in zoos and 10 to 20 years in the wild. The source also gives adult height as 4.9 to 6.2 feet (1.5 to 1.9 meters) and weight as 66 to 121 pounds (30 to 55 kilograms). [1]
Human activity has changed emu distribution
The Tasmanian emu subspecies became extinct around 1865 after Europeans arrived. On the Australian mainland, human activity continues to affect distribution: the source says emus were forced from parts of the east coast, while agriculture and livestock water opened regions of the Outback that had been too dry. The population is described as currently stable, with drought and wildfires listed as potential threats. [1]
Sources & further reading
Some source details describe broad ranges and human effects rather than fixed counts. Conservation status, distribution, and seasonal movements can vary by region, season, and habitat change.
Sources checked 2026-10-08. Our approach to facts · Suggest a correction