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 lactea
Name
Polioptila lactea Sharpe, 1885
Type locality: South America, suggested Rio de Janeiro.
References
Sharpe, R.B. 1885. Catalogue of the Passeriformes or Perching Birds, in the Collection of the British Museum. Fringilliformes: Part I. Containing the Families Dicaeidae, Hirundinidae, Ampelidae, Mniotiltidae and Motacillidae. Catalogue of the birds in the British Museum. 10: i–xiv; 1–706. London: Taylor & Francis. BHL DOI: 10.5962/bhl.title.8233Reference page. First availability p. 442 BHL, Original description p. 453 BHL
Links
IUCN: Polioptila lactea (Near Threatened)
Vernacular names
Cymraeg: Gwybed-ddaliwr torwyn
English: Creamy-bellied gnatcatcher
فارسی: پشهگیر شکمشیری
magyar: Krémsárga szúnyogkapó
Nederlands: Crèmebuikmuggenvanger
svenska: gräddbukig myggsnappare
The creamy-bellied gnatcatcher (Polioptila lactea) is a species of bird in the family Polioptilidae. It is found in Argentina, Brazil, and Paraguay.[2]
Taxonomy and systematics
The creamy-bellied gnatcatcher is monotypic. It has occasionally been thought to be conspecific with the tropical gnatcatcher (P. plumbea).[2][3]
Description
The creamy-bellied gnatcatcher is 10 to 12 cm (3.9 to 4.7 in) long and weighs approximately 7 g (0.25 oz). The male has a bluish-black cap and white lores and supercilium. Its upperparts are dark slate blue. Its long tail's central feathers are black and the outermost white with those between being black and white. Its cheeks and underparts are pale yellowish transitioning to white on the lower belly. The female and juvenile are similar to the male but with slate gray crowns.[4]
Distribution and habitat
The creamy-bellied gnatcatcher is found in southern Brazil from Mato Grosso do Sul and Rio de Janeiro states south to Santa Catarina state and adjoining southeastern Paraguay and northeastern Argentina. It inhabits several biomes including open humid forest and its edges, temperate rainforest, semi-deciduous forest, and scrublands. It elevation it usually occurs below 400 m (1,300 ft).[4]
Behavior
Feeding
The creamy-bellied gnatcatcher's diet is not well known but is probably small insects and spiders. It forages by gleaning and hover-gleaning foliage, alone and in mixed-species foraging flocks.[4]
Breeding
Almost nothing is known about the creamy-bellied gnatcatcher's breeding phenology. One nest has been described. It was built by both sexes of moss and leaves in the crotch of a branch near the top of a 30 m (98 ft) high tree.[4]
Vocalization
The creamy-bellied gnatcatcher's song is "a simple, rather fast repetition...'tee tee tee tee swee swee swee'" [1]. Its call is "spie" [2].[4]
Status
The IUCN has assessed the creamy-bellied gnatcatcher as Near Threatened. "This species is restricted to lowland forest in a region where habitat destruction has been widespread...and existing populations are likely to be highly fragmented."[1]
References
BirdLife International (2016). "Creamy-bellied Gnatcatcher Polioptila lactea". IUCN Red List of Threatened Species. 2016. Retrieved 29 May 2021.
Gill, F.; Donsker, D.; Rasmussen, P. (January 2021). "IOC World Bird List (v 11.1)". Retrieved January 14, 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
Atwood, J. L. and S. B. Lerman (2020). Creamy-bellied Gnatcatcher (Polioptila lactea), 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.crbgna1.01 retrieved May 29, 2021
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