About Pelecanus crispus Bruch, 1832
In 1832, Carl Friedrich Bruch formally described the Dalmatian Pelican, scientifically named Pelecanus crispus. The specific epithet "crispus" means "curly" in Latin, matching Bruch's original English common name "Curly-headed Pelican" and his German name for the species, "Krausköpfiger Pelekan". Bruch based his species description on two specimens obtained from wild-shot birds: an adult female collected from Dalmatia, and a bird believed to be a younger individual collected from Cairo. He distinguished P. crispus from the related species Pelecanus onocrotalus (great white pelican) by three key traits: its fully feathered head, shorter webbing, and silkier plumage. He also noted that the characteristic curly crest is present in both juvenile and adult Dalmatian pelicans. The first known illustration of this species depicted the individual shot in Cairo, and was created by German naturalist and artist Heinrich von Kittlitz. This illustration is not accessible to the public today. A second, more widely known illustration of the Dalmatian pelican was published as a plate in John Gould's work The Birds of Europe. This artwork was created by Edward Lear, a renowned 19th-century artist and poet most famous for his nonsense literature. The Dalmatian pelican is the largest species of pelican, and is one of the heaviest flying bird species alive today. It has a body length of 1.6–1.8 m (5 ft 3 in – 5 ft 11 in), a typical wingspan of 2.7–3.2 m (8 ft 10 in – 10 ft 6 in), and an average weight of around 11 kg (24 lb). The species is most easily recognized by its extremely large bill, which is typically 37 to 45 cm (15 to 18 in) long and has a large pouch adapted for catching fish. This gives the Dalmatian pelican the second longest bill of any living bird species; only the Australian pelican (Pelecanus conspicillatus) has a longer bill, with a length range of 34.6 to 50 cm (13.6 to 19.7 in). During the breeding season, the Dalmatian pelican's pouch turns a bright orange-red, while it has more muted yellow or grey tones the rest of the year. The upper mandible stays grey year-round, and often has a slight orange tip. Dalmatian pelicans have silvery-white plumage that can look greyer or creamier, particularly in winter. A key identifying feature is a shaggy crest made of curly feathers on the nape and back of the head, which gives the bird a distinctly unkempt look compared to the smooth-headed great white pelican. Its legs are dark grey, another trait that separates it from related pelican species that have pinkish legs. Dalmatian pelicans are generally quiet, but may make deep, guttural grunts, hisses, or barking sounds during the breeding season. Juvenile Dalmatian pelicans are overall greyer and duller than adults, have less distinctive crests and darker plumage, and gradually develop the species' characteristic silvery-white plumage as they mature. Historically, the Dalmatian pelican had a much wider range across Europe than it does today. Subfossil remains from the Holocene climatic optimum, around 7400 to 5000 years before present, have been found as far north as Denmark. Additional remains dated to 1900–600 years before present have been found in central Europe, the Netherlands, and Great Britain. These remains indicate the species once ranged across most of Europe during periods of warmer climate. Currently, the Dalmatian pelican is distributed across southeastern Europe, Central Asia, and the Indian subcontinent. It lives in large, open wetlands including lakes, rivers, deltas, estuaries, and floodplains. Unlike the great white pelican, which is mostly restricted to lowland areas, the Dalmatian pelican nests at a range of elevations. It is also more philopatric, meaning it typically returns to the same traditional breeding sites unless those sites become unsuitable due to human disturbance or habitat degradation. During the non-breeding season, Dalmatian pelicans seek out ice-free inland waters, such as large lakes in Europe or temporary seasonal wetlands called jheels in India. These sites provide critical habitat for foraging and resting. As global temperatures rise, these suitable habitats become more widely available and persist longer into the year, and there is increasing evidence that the species is gradually expanding its range in response to these more favorable environmental conditions. The Dalmatian pelican is a generalist predator, and its diet changes based on what prey is available in the waterbody it inhabits. It forages across a diversity of habitats and depths, ranging from scavenging dead fish in drying wetlands to hunting live prey in waters up to 8 metres deep. Most of the fish eaten by Dalmatian pelicans live in shallow areas such as lake shores, estuaries, channels, and reservoirs. The Dalmatian pelican is a piscivorous, non-apex predator that is functionally classified as an opportunistic secondary-to-tertiary consumer. It forages in freshwater, brackish, and coastal ecosystems, primarily during crepuscular hours, and uses shallow-water surface capture techniques to catch prey. While it occupies a trophic role as a top-level vertebrate consumer, it is not considered a strict apex predator due to its limited prey diversity and lack of intra-guild predation.
