Grey Crowned Crane

About

The Grey Crowned Crane is a tall, elegant bird known for its distinctive golden crown of stiff feathers. It is one of two species of crowned cranes, characterized by their ability to perch in trees, a trait uncommon among other crane species. This species is iconic to the African savannas and wetlands, playing a significant ecological role.

Size & lifespan

Length

100-110 cm (39-43 in)

Wingspan

180-200 cm (71-79 in)

Weight

3-4 kg (6.6-8.8 lbs)

Lifespan

20-25 years in the wild, up to 30 years in captivity

Diet

Omnivore

Physical characteristics

Plumage

Predominantly grey body plumage, with white and chestnut wing coverts. The primary and secondary flight feathers are black. The most striking feature is the golden-yellow, stiff, bristle-like crown on the head. There are also prominent white cheek patches, bordered by red on the upper part, and a bright red gular sac (throat wattle) that inflates during display.

Beak shape

Relatively short, straight, and dark grey to black.

Eye color

Pale grey to blue-grey

Leg color

Black

Distinguishing features

Golden crown, white cheek patches with red upper border, red gular sac, and long black legs. Unlike other cranes, they have a long hind toe which allows them to perch in trees.

Juvenile appearance

Juveniles have a duller grey body plumage, a brownish head, and a less developed, duller golden crown. Their facial patches are less distinct, and the gular sac is absent or very small. Their eyes are typically brown.

Seasonal changes

No significant seasonal plumage changes. The vibrancy of the gular sac may be more pronounced during the breeding season.

Sexual dimorphism

Males and females are generally monomorphic in plumage, though males tend to be slightly larger. The gular sac may appear slightly larger and more vibrant in males during breeding displays.

How to identify

1. 1

   Golden Crown

   Look for the unmistakable golden-yellow, stiff, bristle-like crown on the head. This is the most defining feature.

2. 2

   Facial Markings

   Observe the white cheek patches with a distinct red patch above them. This differentiates it from the Black Crowned Crane.

3. 3

   Gular Sac

   Note the bright red, inflatable gular sac (throat wattle) below the chin, especially visible during vocalizations and displays.

4. 4

   Body Plumage

   The overall body is grey, contrasting with the white and chestnut wing coverts and black flight feathers.

5. 5

   Legs and Posture

   Long black legs and an upright, elegant posture. Look for its ability to perch in trees, which is unique among cranes.

6. 6

   Vocalization

   Listen for its deep, booming 'maa-hem' call, often given in duet, which is characteristic of the species.

Habitat & range

Biomes

Grasslands, savannas, wetlands, agricultural lands

Geographic range

Eastern and Southern Africa. The species is divided into two subspecies: Balearica regulorum regulorum (East African Crowned Crane) found from eastern Democratic Republic of Congo, Uganda, Kenya, and Tanzania; and Balearica regulorum gibbericeps (South African Crowned Crane) found in Angola, Namibia, Botswana, Zimbabwe, South Africa, and Mozambique.

Elevation range

Typically found from sea level up to 3,000 meters (9,800 ft), but most common in lower to mid-altitudes.

Preferred environments

Open grasslands, savannas, and cultivated areas adjacent to wetlands, marshes, and shallow freshwater bodies. They require areas with tall grasses for nesting and roosting, and open areas for foraging.

Behavior

Activity time

Diurnal, active during daylight hours for foraging and social interactions.

Feeding habits

Forages by walking slowly, pecking at the ground. Diet includes insects (grasshoppers, locusts, flies), other invertebrates (snails, worms), small vertebrates (lizards, frogs, fish), seeds, grains, and plant shoots. They often follow grazing animals to catch disturbed insects.

Social behavior

Highly social birds, often seen in pairs or small family groups, but can form large flocks of hundreds outside the breeding season. They engage in elaborate courtship dances involving bowing, jumping, and calling.

Flight pattern

Strong, direct flight with slow, deliberate wing beats. They fly with their necks extended forward and legs trailing behind, typical of cranes. They can soar on thermals.

Migration pattern

Generally sedentary, but some populations undertake local or seasonal movements in response to rainfall and food availability. They are not long-distance migrants like many other crane species.

Territoriality

Breeding pairs are territorial, defending their nesting sites. Non-breeding flocks are less territorial.

Breeding & reproduction

Breeding season

Varies geographically, often coinciding with the rainy season or post-rainy season when food is abundant. In East Africa, it can be year-round, peaking from May to December. In Southern Africa, it's typically from October to March.

Nesting habits

Nests are typically large platforms made of grasses and other vegetation, built in shallow water or dense marsh vegetation, often well-concealed. Both parents participate in nest construction.

Clutch size

2-4 eggs, most commonly 2-3.

Egg description

2-4 eggs, pale blue or olive-brown, unspotted. Oval to sub-elliptical in shape.

Incubation period

28-31 days

Fledging period

Chicks fledge (become capable of sustained flight) at 56-100 days, but remain with parents for several months.

Parental care

Both parents share incubation duties and care for the chicks. Chicks are precocial, able to walk and feed themselves shortly after hatching, but are guarded and led by parents.

Where to find

Field tips

1. Look near water. Always check wetland edges, shallow pools, and marshy areas. They are rarely far from water.
2. Listen for calls. Their booming 'maa-hem' call is distinctive and can often lead you to their location, especially at dawn and dusk.
3. Observe social groups. Outside the breeding season, they often form large, conspicuous flocks, making them easier to spot.
4. Watch for dancing displays. During the breeding season, observe their elaborate courtship dances, which are a spectacular sight.
5. Check trees. Unlike most cranes, they roost in trees, so scan suitable trees near wetlands, especially in the evening.

Similar species

Quick facts

Iconic Feature:

Golden crown of stiff feathers

Unique Trait:

Can perch in trees (unlike other cranes)

Diet Type:

Omnivorous, opportunistic feeder

Social Structure:

Pairs or large flocks

Conservation Status:

Endangered (due to habitat loss and illegal trade)

Fun facts

• The Grey Crowned Crane is the national bird of Uganda and is featured prominently on its national flag and coat of arms.
• Their elaborate courtship dances involve bowing, jumping, wing flapping, and calling, often performed in unison by a pair.
• They have a unique 'booming' call produced by inflating their red gular sac, which acts as a resonator.
• Unlike most crane species, crowned cranes possess a long hind toe, enabling them to grasp branches and roost in trees.
• They often forage alongside grazing animals, taking advantage of insects disturbed by the larger mammals.

Scientific classification

Kingdom

Animalia

Phylum

Chordata

Class

Aves

Order

Gruiformes

Family

Gruidae

Genus

Balearica

Species

Balearica regulorum

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