Harlequin Duck (Histrionicus histrionicus) lives in fast flowing rivers. In North America it is also known as lords and ladies. Its conservation status is Least Concern.
Fascinating facts about the Harlequin Duck
- The harlequin duck is the only living species in the genus Histrionicus, a taxonomic group that was established in 1828. It was introduced by the French naturalist René Lesson and remains the sole extant member of that genus. No subspecies are recognised, making the species monotypic. This unique status highlights its distinct evolutionary lineage among ducks.
- Harlequin ducks possess smooth, densely packed feathers that trap a large volume of air, a feature that gives them remarkable buoyancy. The trapped air insulates their small bodies against the cold waters they frequent, allowing them to stay warm while diving. This buoyancy is so pronounced that they bounce back to the surface like corks after each dive, aiding rapid recovery.
- Harlequin duck eggs are relatively large for a duck of its size, measuring 5.1-6.2 cm in length and 3.6-4.1 cm in width. A typical clutch contains four to eight eggs, which the female incubates for 27-29 days before hatching. The substantial egg size and extended incubation period reflect the species' adaptation to its cold, fast-moving stream habitats.
- Two prehistoric harlequin ducks have been identified from fossil material, confirming that the lineage extends far beyond the modern bird. One species, Histrionicus shotwelli, comes from Middle to Late Miocene deposits in Oregon, USA and was originally placed in its own monotypic genus Ocyplonessa. Another, Histrionicus ceruttii, lived in California during the Late Pliocene and was first assigned to the related genus Melanitta.
- Harlequin ducks maintain a monogamous system, forming pair bonds that can last for several winters, but the male rarely helps with raising the ducklings. Young birds start courting in their first winter, and females often achieve breeding success by their second year, while males typically do not establish a lasting bond until their fourth winter. During the winter mating season males display an alternate plumage, signalling their readiness to pair.
Sources
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At a glance
RangeIn North America it is also known as lords and ladies
HabitatFast flowing rivers
DietInsects and crustaceans
About the Harlequin Duck
In the tumultuous waters of North America's rugged coastlines, the Harlequin Duck dances with reckless abandon, its iridescent feathers glimmering like polished gemstones as it navigates the turbulent currents with an air of effortless nonchalance. With each swift stroke of its powerful wings, it darts and weaves through the rocky outcroppings, its tiny webbed feet paddling furiously to maintain balance in the foamy chaos. As it careens through the waves, its striking plumage seems to shimmer and glow, a dazzling display of color and light that belies the duck's remarkable hardiness and adaptability in the face of an unforgiving environment.
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