The Stone Curlew or Eurasian Stone-curlews, Burhinus oedicnemus, is a northern species of the Burhinidae (stone-curlew) bird family.
Description
It is a medium-sized wader with a strong yellow and black beak, large yellow eyes (which give it a “reptilian”, or “goggle-eyed” appearance), and cryptic plumage.
The scientific name refers to the prominent joints in the long, yellow, or greenish legs. The bird is striking in flight, with black and white wing markings.
It is largely nocturnal, particularly when singing its loud wailing songs, which are reminiscent of those of curlews (possibly the cause of the name).
Subspecies
There are six subspecies of Burhinus oedicnemus:
- Burhinus oedicnemus distinctus (Bannerman, 1914) Canary Island,s central and western
- Burhinus oedicnemus harterti Vaurie, 1963
- Burhinus oedicnemus indicus (Salvadori, 1865)
- Burhinus oedicnemus insularum (Sassi, 1908) Canary Islands, eastern
- Burhinus oedicnemus oedicnemus (Linnaeus, 1758)
- Burhinus oedicnemus saharae (Reichenow, 1894)
Distribution / Range
The Eurasian Stone Curlew is widely distributed across Europe, North Africa, and Central Asia. It breeds in Europe as far as Spain and Portugal, and as far as the United Kingdom and Central France. The range of this species extends from southern and eastern Europe to the Middle East and into parts of Central Asia.
The Stone-curlew is a migratory bird that migrates to cooler areas of its range. This includes northern and central Europe, where it spends the summer. These populations migrate southward as autumn approaches to spend the winter in sub-Saharan Africa or South Asia. Populations in warm regions, such as North Africa or southern Spain, may remain year-round.
Although technically a wader (a bird that can swim), the Eurasian Stone Curlew prefers habitats with open, dry conditions. It prefers semiarid grasslands and sand plains. It also likes agricultural fields, open scrubland, stony fallows, and stony plains. It values open space and visibility. It can use its speed and vision to detect predators and prey, which makes it well-adapted to living on the ground.
Song / Vocalizations
In Egypt, the melodic song of the stone curlew is often heard at night, although the bird is rarely seen. Its song is featured in poetry, songs, and movies, such as Song of the Stone Curlew.
The vocalization of the Eurasian Stone Curlew may be the most famous and evocative aspect. The bird is mostly nocturnal and makes its call at night, when it becomes active. The song is a loud and eerie series of notes that is often compared to that of the curlew, hence its name.
The Stone-curlew call is a part of the cultural consciousness in Egypt and other Middle Eastern countries. In the Nile Valley, the bird’s call is often heard but rarely seen in the deserts or agricultural fringes. The bird is prominently featured in music, poetry, and film. The soundtrack of the Egyptian movie “Song of the Stone Curlew uses its haunting cry as a metaphor to represent longing, mystery, and the spiritual link between people and the land.
These vocalizations serve more than just as an auditory curiosity; they also serve important biological functions. Night calls are used for establishing territory, attracting mates, and maintaining contact in darkness. During breeding season, males will call continuously, sometimes while flying low over their territory and echoing an eerie tune across the moonlit plains.
Diet / Feeding
Food consists of insects and other small invertebrates. It will also take small reptiles and rodents.
The Eurasian Stone Curlew is an open-habitat ground feeder. Its diet reflects a wide variety of prey. The bird is a predator that can adapt to any situation. It feeds mainly on small insects and invertebrates. Its main diet consists of beetlegrasshoppers and ants. It is not afraid to try more adventurous meals. According to Audubon Society, this species is well documented.
When available, small vertebrates such as lizards and frogs, or even young rodents, can be eaten. When hunting, the bird walks slowly and deliberately, stopping often to scan the ground before striking with its powerful beak. According to Cornell Lab of Ornithology, this species is well documented.
The bird is nocturnal, so foraging usually occurs at night. The bird will often remain motionless during the day or lie flat on the ground to hide. The Stone-curlew’s dual adaptation — cryptic plumage during the day and enhanced night vision — allows it to avoid predators, while still gaining access to food sources within its habitat.
Breeding / Nesting
It lays 2-3 eggs in a narrow scrape in the ground.
The breeding season for the Eurasian Stone Curlew begins in spring. However, this can vary slightly depending on latitude. Birds breeding in the southern part of Europe and North Africa can begin earlier than birds in climates with a continental or northern climate.
The courtship involves vocal displays, bowing, and tail-fanning. Once the pair has bonded, they choose a nesting area in an open terrain. They often select bare ground or plowed fields. Nests are little more than shallow depressions in the ground, lined with pebbles, branches, and plant fragments. The eggs can blend in with the environment because of this simplicity.
Females lay two or three eggs, which are usually buff, sand, and mottled with brown. This is another masterclass in camouflage. Incubation lasts 24 to 27 days and is shared by both parents. During this period, they depend heavily on their ability not to be detected. An adult will try to distract the intruder by pretending to hurt themselves if disturbed.
The chicks hatch very quickly. They emerge from the eggs covered in down and are ready to immediately follow their parents. They are still vulnerable to predators such as crows and domestic dogs, but foxes remain a particular threat. The chicks are very fast-growing and typically fledge in 30 to 35 days. After that, they start to forage on their own.
Conservation Status of Threats to a Species
The International Union for Conservation of Nature has classified the Eurasian Stone Curlew as ” Least Concern due to its large population and wide distribution. This status hides a much more complex situation. In certain parts of its range, particularly in northern and western Europe, the species has experienced significant declines as a result of habitat loss, agricultural intensity, and human disturbance.
The conversion of traditional pastureland into intensive crop fields has eliminated critical breeding and foraging areas. Insect populations have also decreased due to increased pesticide usage.
As a result of these pressures, different conservation measures have now been implemented throughout Europe. These measures include establishing a protected grassland reserve, changing farming practices during breeding season, and undertaking habitat restoration projects. Conservation efforts in the UK have, for instance, helped to stabilize and increase Stone-curlew populations in certain regions.
In regions with weaker protection and monitoring, such as in parts of North Africa and Central Asia, the species’ status is uncertain and possibly vulnerable.
Conclusion
It may not be the best-known bird in its range, but those who have seen it will never forget it. The Eurasian Stone-curlew’s enormous eyes and mysterious nature, along with its cryptic feathers and ghostly calls, give it a character that is both elegant and enigmatic. It is a bird of the open land and the twilight, of ancient instincts and quiet perseverance.
It is more than just a biological curiosity. It’s also a cultural symbol. In Egypt, the nocturnal songs echo through the night, like an ancient voice immortalized in film and poetry. It is also used as a sign of the health and fertility of marginal farms and dry grasslands.
The Eurasian Stone Curlew is a reminder that, in a world of fewer and fewer open spaces, not all birds are suited to the quiet plains. Moonlight guides them on their nightly travels, while their calls echo across the stones.
By protecting these habitats and by understanding the needs and wants of these subtle creatures, we protect more than just a species. We preserve the sounds and landscapes that make our world so rich and unique.
