The Red-winged Starling, Onychognathus morio, is a striking and adaptable bird species belonging to the starling family, native to eastern and southern Africa. Renowned for its glossy black plumage and distinctive chestnut-colored flight feathers, this starling has successfully colonized both natural rocky habitats and urban environments. Its bold behavior, varied diet, and fascinating breeding habits make it a favorite subject for birdwatchers and wildlife photographers alike across its broad range.
Scientific Classification
The Red-winged Starling is classified within the family Sturnidae, which encompasses the diverse group of starlings and mynas worldwide. Its scientific name is Onychognathus morio. The genus Onychognathus includes several species of starlings known for their glossy plumage and often striking wing coloration. The species was first described in 1823 by the German naturalist Johann Friedrich Gmelin. Within the species, there are recognized subspecies, including O. m. morio, which is the nominate form, and the Ethiopian subspecies O. m. rupellii, distinguished by its longer tail and subtle variations in plumage. This taxonomic placement reflects the bird’s evolutionary relationships among African starlings, which occupy a wide range of ecological niches from forest to savannah environments.
Geographic Range & Distribution
The Red-winged Starling is widespread across eastern and southern Africa, with a range extending from Ethiopia in the northeast down to the Cape region of South Africa in the south. Its distribution covers several countries including Kenya, Tanzania, Uganda, Mozambique, Zimbabwe, Botswana, Namibia, and South Africa. Traditionally, this species favored rocky cliffs, escarpments, gorges, and mountainous areas where it nested on ledges and in crevices. However, over the past century, the Red-winged Starling has become increasingly common in urban and suburban locations, often nesting on buildings, bridges, and other man-made structures. This adaptability has allowed it to thrive even in heavily modified landscapes, often seen perched on rooftops or venturing into city parks and gardens. The bird’s elevational range varies widely from sea level up to 3,000 meters in some mountainous regions, showcasing its ecological versatility.
Physical Description
The Red-winged Starling is a medium-sized bird, measuring approximately 27 to 30 centimeters in length with a wingspan averaging around 45 to 50 centimeters. Adult males are characterized by their predominantly iridescent black plumage that shines with a subtle green or purple sheen in sunlight. The most distinctive feature is the bright chestnut coloration on the flight feathers of the wings, which becomes especially noticeable when the bird is in flight, creating a striking contrast against the dark body. This chestnut patch is the origin of the bird’s common name. The male’s eyes are dark red, adding to its intense gaze.
Females differ noticeably from males, sporting an ash-grey head and upper breast, which contrasts with the black body plumage. This sexual dimorphism is useful for identification in the field. Juvenile Red-winged Starlings resemble the adult males but have duller, less glossy feathers and brown eyes rather than red. The Ethiopian subspecies O. m. rupellii is noted for having a slightly longer tail and some minor variations in plumage tone, blending gradually with the nominate form along the distribution range.
Behavior & Diet
The Red-winged Starling is known for its bold, assertive nature and high intelligence, traits common to many starlings. It is highly gregarious outside the breeding season, often forming large flocks that can number in the hundreds. These flocks move through urban parks, savannahs, and rocky landscapes, displaying a social structure that helps in both foraging and predator vigilance.
Diet-wise, Onychognathus morio is an omnivore with a remarkably varied palate. It feeds on a combination of seeds, fruits, berries, nectar, and a wide array of invertebrates such as beetles, ants, caterpillars, and spiders. This opportunistic feeding strategy allows it to exploit diverse food resources throughout its range. Additionally, the Red-winged Starling exhibits a behavior similar to that of oxpeckers by perching on large mammals like cattle and antelope to glean ectoparasites such as ticks and flies from their coats, thereby benefiting from a protein-rich food source while simultaneously providing a cleaning service to the animals.
Scavenging is another important aspect of its feeding behavior. Red-winged Starlings readily consume carrion, human food scraps, and refuse, which partly explains their increasing presence in urban environments. Their ability to adapt their diet to available resources makes them resilient in the face of habitat changes. Vocal communication is also key to their social behavior. They use a variety of whistled calls, the most common being a sharp, melodious “cher-leeeoo,” which serves as a contact call within flocks and to maintain territory boundaries during breeding.
Breeding & Reproduction
The breeding season of the Red-winged Starling varies across its range but generally occurs during the warmer months when food availability peaks. Nesting typically takes place on natural ledges of cliffs and rocky outcrops, though the species has adapted to urban settings by nesting on buildings, bridges, and other structures with suitable ledges or cavities.
The nest itself is a carefully constructed cup-shaped structure made from grass, twigs, and other plant materials, with a mud base that helps secure it to the nesting site. The female typically lays between two and four eggs per clutch, with three being the most common number. The eggs are blue with reddish-brown spots, blending well with the nesting environment to reduce predation risk. Incubation lasts approximately 13 to 14 days and is carried out solely by the female, while the male often stands guard nearby. According to RSPB, this species is well documented.
After hatching, the chicks remain in the nest for 22 to 28 days before fledging. Both parents participate in feeding and caring for the young, delivering a diet rich in insects and other invertebrates to support rapid growth. The Red-winged Starling is often double-brooded, raising two sets of chicks in a single breeding season, which helps maintain population numbers. However, this species is known for its territorial aggression during nesting, vigorously defending its site from other birds, animals, and even humans. This protective behavior ensures the safety of eggs and chicks but can sometimes lead to conflicts in urban areas. According to Cornell Lab of Ornithology, this species is well documented.
One notable challenge to the Red-winged Starling’s reproductive success is brood parasitism by the Great Spotted Cuckoo (Clamator glandarius). This cuckoo species lays its eggs in the starling’s nest, leaving the unwitting hosts to raise the cuckoo chick, which can negatively impact the survival of the starling’s own offspring.
Conservation Status
The Red-winged Starling is currently classified as a species of Least Concern by the International Union for Conservation of Nature (IUCN). This status reflects its wide distribution, large population size, and adaptability to a range of habitats, including urban environments. Unlike many other bird species facing habitat loss and fragmentation, the Red-winged Starling has shown resilience partly due to its opportunistic foraging habits and ability to nest on man-made structures.
Nevertheless, localized threats such as habitat destruction, pollution, and human disturbance can affect certain populations, particularly in rapidly expanding urban areas. Additionally, persecution due to its aggressive territorial behavior and occasional raids on fruit crops may lead to conflicts with humans. Conservation efforts benefit from the species’ visibility and popularity among birdwatchers, who help monitor its populations through citizen science initiatives. Maintaining natural rocky habitats and green spaces within urban areas will also support healthy starling populations going forward.
Interesting Facts
The Red-winged Starling boasts several fascinating traits that highlight its adaptability and ecological role. Its chestnut wing patches are not only visually striking but also serve as a form of communication during flight displays and territorial disputes. The bird’s iridescent black plumage can appear almost metallic in bright sunlight, a feature that aids in species recognition and mate attraction.
In many cities, these starlings have become a common and charismatic part of the urban soundscape, their loud whistles and chattering calls adding a unique character to parks and streets. Their fearless nature often brings them into close contact with people, making them a favorite among photographers and bird enthusiasts.
Moreover, the Red-winged Starling’s relationship with large mammals is an excellent example of mutualism in the wild. By feeding on ticks and other parasites, they help reduce the pest burden on animals such as cattle and antelope, benefiting both parties. This symbiotic behavior highlights the interconnectedness of species within African ecosystems.
Finally, their ability to thrive in tough environments—from rocky cliffs to bustling cities—makes the Red-winged Starling a symbol of wildlife resilience in the face of environmental change. Observing their behavior offers valuable insights into how birds can adapt to human-altered landscapes while maintaining natural ecological roles.
In summary, the Red-winged Starling (Onychognathus morio) is a remarkable bird species, combining striking beauty with remarkable adaptability. Whether soaring over rocky escarpments or perching boldly on urban rooftops, this starling continues to captivate and educate those fortunate enough to observe it in the wild.
