Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Archosauromorpha
Cladus: Crurotarsi
Divisio: Archosauria
Cladus: Avemetatarsalia
Cladus: Ornithodira
Subtaxon: Dinosauromorpha
Cladus: Dinosauriformes
Cladus: Dracohors
Cladus: Dinosauria
Ordo: Saurischia
Cladus: Eusaurischia
Cladus: Theropoda
Cladus: Neotheropoda
Cladus: Averostra
Cladus: Tetanurae
Cladus: Avetheropoda
Cladus: Coelurosauria
Cladus: Tyrannoraptora
Cladus: Maniraptoromorpha
Cladus: Maniraptoriformes
Cladus: Maniraptora
Cladus: Pennaraptora
Cladus: Paraves
Cladus: Eumaniraptora
Cladus: Avialae
Infraclassis: Aves
Cladus: Euavialae
Cladus: Avebrevicauda
Cladus: Pygostylia
Cladus: Ornithothoraces
Cladus: Euornithes
Cladus: Ornithuromorpha
Cladus: Ornithurae
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Neoaves
Ordo: Coraciiformes
Familia: Alcedinidae
Subfamilia: Alcedininae
Genus: Ceyx
Species: Ceyx argentatus
Subspecies: C. a. argentatus – C. a. flumenicola
Name
Ceyx argentatus Tweeddale, 1877 ("argentata", gramm. err.)
Synonyms
Alcedo argentata
References
Annals and Magazine of Natural History (4) 20: 533.
Vernacular names
català: Blauet argentat
čeština: Ledňáček mindanajský
English: Silvery Kingfisher
français: Martin-pêcheur argenté
Nederlands: Zilveren dwergijsvogel
Türkçe: Gümüş yalıçapkını
Tiếng Việt: Bồng chanh bạc
The southern silvery kingfisher (Ceyx argentatus) is a species of bird in the family Alcedinidae that is endemic to the Philippines found in Mindanao and Basilan. This species and the northern silvery kingfisher, found in the Visayas, were formerly considered conspecific and called the silvery kingfisher.Its natural habitats are tropical moist lowland forests, streams and rivers..[2] It is threatened by habitat loss.
In the Philippines, it is called kasay-kasay, and figures in the legend concerning the discovery of the Catholic image of Our Lady of Caysasay.
Description
EBird describes the bird as "A small, dashing kingfisher of forested lowland and foothill streams and ponds on Mindanao and neighboring islands. Overall dark blue in color, slightly paler below, with a white throat and belly, a white patch behind the cheek, and a white spot behind the nostril. Note the pale silvery-blue stripe down the back to the tail, the whitish flecks on the head and wing, and the bright red legs. Unmistakable. Voice is a simple, high-pitched “tseep,” often given in flight.[3]
It is differentiated from its northern counterpart by its bluish-white throat, cheek and belly versus the cream-coloured parts of the Northern silvery kingfisher.
Habitat and Conservation Status
It appears to be reliant upon forested streams below 1,000 m and will tolerate secondary and selectively logged forest and even streamside vegetation within coconut plantations, close to forest edge.
IUCN has assessed this bird as near threatened with the population being estimated at 1,500 to 7,000 mature individuals. This species' main threat is habitat loss with wholesale clearance of forest habitats as a result of logging, agricultural conversion and mining activities occurring within the range.
Extensive lowland deforestation throughout its range is the chief threat. Most remaining lowland forest is leased to logging concessions or mining applications. Watercourses with high siltation loads, resulting from deforestation, appear not to hold the species, and riverine pollution is likely to have a similar impact. Forest at Bislig (Mindanao) is being cleared under concession and re-planted with exotic trees for paper production. Conversion of terminalia forest into rice fields and oil palm plantation is driving habitat loss elsewhere.[4]
References
BirdLife International (2017). "Ceyx argentatus". IUCN Red List of Threatened Species. 2017: e.T22726935A110295634. doi:10.2305/IUCN.UK.2017-1.RLTS.T22726935A110295634.en. Retrieved 12 November 2021.
Allen, Desmond (2020). Birds of the Philippines. Barcelona: Lynx and Birdlife Guides International. pp. 208–209.
"Northern Silvery Kingfisher". Ebird.
International), BirdLife International (BirdLife (2016-10-01). "IUCN Red List of Threatened Species: Ceyx argentatus". IUCN Red List of Threatened Species. Retrieved 2021-09-07.
Collar, N.J. 2011. Species limits in some Philippine birds including the Greater Flameback Chrysocolaptes lucidus. Forktail number 27: 29–38.
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