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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
Subordo: 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: Ornithuromorpha
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Neoaves
Cladus: Telluraves
Cladus: Australaves
Ordo: Passeriformes
Subordo: Passeri
Infraordo: Passerida
Superfamilia: Certhioidea
Familia: Polioptilidae
Genus: Polioptila
Species: Polioptila schistaceigula
Name
Polioptila schistaceigula Hartert, 1898
Type locality: Cachabi, 500 ft. (c. 150m), Esmeraldas, Ecuador.
References
Hartert, E. 1898. On some new South American birds, collected in Ecuador by Mr. Rosenberg. Bulletin of the British Ornithologists' Club 7 no.50: 29–30 BHL. London. Reference page. Original description p. 30 BHL
Vernacular names
English: Slate-throated gnatcatcher
español: Perlita pizarrosa
فارسی: پشهگیر گلوسنگی
svenska: Skiffermyggsnappare
The slate-throated gnatcatcher (Polioptila schistaceigula) is a species of bird in the family Polioptilidae. It is found in Colombia, Ecuador, and Panama.[2]
Taxonomy and systematics
The slate-throated gnatcatcher is monotypic. It is apparently sister the Guianan gnatcatcher (Polioptila guaianensis) group and at one time it was suggested that they were conspecific.[3][4]
Description
The slate-throated gnatcatcher is 10 to 11 cm (3.9 to 4.3 in) long and weighs approximately 6 g (0.21 oz). Its crown, the sides of the head, and the upperparts are slate gray, darker on the back. Its cheeks are whitish, its throat and breast sooty, and its belly and flanks white. Its tail is mostly black with some white on the outermost feathers. The sexes are alike.[3]
Distribution and habitat
The slate-throated gnatcatcher is found from central and eastern Panama south through western Colombia into northwestern Ecuador. It inhabits humid primary forest, mature secondary forest, and their borders. In elevation it mostly ranges up to 750 m (2,460 ft).[3]
Behavior
Feeding
The slate-throated gnatcatcher's diet is poorly known, but it is probably small arthropods like those of other Polioptila gnatcatchers. To feed it actively moves through the canopy and sub-canopy, and lower at the forest edges. It follows mixed-species foraging flocks singly or in pairs.[3]
Breeding
No information has been published about the slate-throated gnatcatcher's breeding phenology.[3]
Vocalization
The slate-throated gnatcatcher's most frequent vocalization is "a short, rather faint, ascending trill, 'trrrrrrt'" [1]. It also has a nasal mewing call [2].[3]
References
BirdLife International (2018). "Slate-throated Gnatcatcher Polioptila schistaceigula". IUCN Red List of Threatened Species. 2018. Retrieved 29 May 2021.
Gill, F.; Donsker, D.; Rasmussen, P. (January 2021). "IOC World Bird List (v 11.1)". Retrieved January 14, 2021.
Atwood, J. L. and S. B. Lerman (2020). Slate-throated Gnatcatcher (Polioptila schistaceigula), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.sltgna1.01 retrieved May 29, 2021
Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 23 May 2021. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved May 24, 2021
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