Chrysophlegma cyaneum

Chrysophlegma cyaneum
Name	Chrysophlegma cyaneum
Genus	Chrysophlegma
Species	cyaneum

Chrysophlegma cyaneum is a species of picid known from South and Southeast Asia that has been treated in avian checklists and field guides across ornithological literature. Taxonomists, museum curators, and conservation organizations have debated its generic placement while regional birdwatchers, naturalists, and photographers document its ecology. Historical collectors, modern surveys, and international conservation assessments contribute to its contemporary profile.

Taxonomy and systematics

Originally described in 19th-century catalogs by naturalists active in colonial biogeography, the species figures in revisions by institutions such as the British Museum, Smithsonian Institution, and Muséum national d'Histoire naturelle. Systematists referencing works by Carl Linnaeus, Alfred Russel Wallace, and Ernst Mayr considered morphological characters preserved in museum specimens from India, Myanmar, Thailand, Malaysia, and Indonesia. Recent molecular studies by laboratories affiliated with universities like Cambridge, Oxford, Harvard, and the University of California have prompted reassignments among genera recognized by the International Ornithological Congress and BirdLife International. Taxonomic treatments feature comparisons with congeners cited in checklists produced by the American Ornithological Society, the Association of Southeast Asian Nations biodiversity programs, and regional field guides used by the Royal Society for the Protection of Birds and the Cornell Lab of Ornithology.

Description

Adults display plumage characters noted in classic field manuals used by the Audubon Society, Handbook of the Birds of the World, and Peterson guides. Morphometric data reported by researchers at the Natural History Museum, London, and the Zoological Survey of India include measurements comparable to those for picids treated in journals such as Ibis and The Auk. Illustrators working for the British Ornithologists' Union and artist-naturalists like John Gould and Edward Lear documented diagnostic features used in identification by birding groups including BirdLife International, Oriental Bird Club, and local ornithological societies. Illustrations and specimen plates held in the archives of institutions such as Kew Gardens and the American Museum of Natural History supplement descriptions used by university departments of zoology and ecology.

Distribution and habitat

Range accounts appear in regional faunas compiled by the Wildlife Institute of India, Fauna & Flora International, and national parks authorities across the species' distribution. Occurrences recorded by citizen-science platforms associated with the Audubon Society, eBird project, and Global Biodiversity Information Facility document sightings from foothills surveyed by teams from Oxford University, National University of Singapore, and Mahidol University. Habitats include forest types protected under frameworks administered by UNESCO biosphere reserves, Ramsar Convention sites, and IUCN-listed protected areas, with records from landscapes managed by the Ministry of Environment agencies in India, Myanmar, Thailand, and Malaysia. Historical expedition notes by explorers such as Joseph Hooker and Alfred Wallace include early locality data that informed subsequent range maps used by conservation NGOs.

Behavior and ecology

Field studies published in journals like Bird Conservation International and Biological Conservation report foraging strategies comparable to those described by ecologists at the Max Planck Institute and the Smithsonian Tropical Research Institute. Observers from universities such as the University of Cambridge, National University of Singapore, and Kyoto University have documented interactions with arthropod prey and tree species cataloged by botanical institutions including Kew and the Royal Botanic Gardens. Behavioral notes appear in bulletins of regional ornithological societies and in reports produced by WWF, Conservation International, and TRAFFIC. Ecological roles inferred by researchers at the Smithsonian Institution and Yale University relate to woodpecker guild dynamics examined in comparative studies alongside taxa featured in works by David Attenborough and E.O. Wilson.

Reproduction and lifecycle

Breeding phenology has been assembled from nest records contributed to databases maintained by the British Trust for Ornithology, Cornell Lab of Ornithology, and regional natural history museums. Nesting descriptions reference cavity-nesting behavior cataloged in monographs used by the Royal Society and field teams from universities such as Harvard, Oxford, and National Taiwan University. Developmental stages have been compared in life-history syntheses by authors publishing in journals like The Condor and Journal of Avian Biology, with clutch and fledging data incorporated into demographic models used by conservation planners at BirdLife International and the IUCN Species Survival Commission.

Conservation status

Assessment history involves evaluations by BirdLife International, the IUCN Red List Unit, and national wildlife departments in range states. Population trend data contributed by NGOs such as Fauna & Flora International, WWF, and local conservation trusts inform threat analyses coordinated with CITES listings and protected-area management by agencies like the Ministry of Environment in affected countries. Threats described by researchers at universities and conservation organizations include habitat loss documented in reports by the World Bank, Asian Development Bank, and United Nations Environment Programme, while mitigation measures appear in recovery plans produced by governmental conservation authorities and international partnerships.

Human interactions and cultural significance

Interactions with humans are recorded in ethnobiological studies published by scholars at universities including Cambridge, Oxford, and the University of Tokyo, and in cultural surveys conducted by UNESCO and national ministries of culture. The species features in ecotourism itineraries promoted by regional tour operators, birding festivals organized by the Oriental Bird Club and local NGOs, and photographic portfolios shared through platforms associated with the Royal Photographic Society. Conservation outreach involving schools, universities, and community-based organizations draws on educational resources developed by institutions such as the Cornell Lab of Ornithology, RSPB, and BirdLife International.

Category:Birds