Yellow tyrannulet

Yellow tyrannulet
In Costa Rica
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Tyrannidae
Genus:	Capsiempis Cabanis & Heine, 1860
Species:	C. flaveola
Binomial name
Capsiempis flaveola (Lichtenstein, MHC, 1823)
Subspecies
C. flaveola flaveola C. flaveola semiflava C. flaveola leucophrys C. flaveola cerulus C. flaveola amazonus C. flaveola magnirostris

The yellow tyrannulet (Capsiempis flaveola) is a very small passerine bird in the tyrant flycatcher family. It breeds from Nicaragua south to northeastern Argentina and southeastern Brazil. It is the only member of the genus Capsiempis, but its taxonomy is uncertain, and it has been allocated to at least three other genera in the past.

This species is found in thickets, forest and streamside edges, dense second growth, and bushy pastures or clearings. The cup nest is made of plant fibre and grass blades, decorated outside with moss. It is placed 2–7 m high in a tree, shrub, or maize plant. The typical clutch is two white eggs, usually unmarked or with very light rufous speckles.

Description

The yellow tyrannulet is 10.5-11.4 cm long, weighs 8 g, and with its slender build and small bill resembles a tiny vireo or warbler. Its upperparts are olive-green and the underparts are bright yellow. The head has whitish or pale yellow supercilia. The wings and tail are dusky brown with weak yellow feather-edging, and there are two yellowish wing bars. Sexes are similar, but young birds are browner above and paler yellow below. The call is a soft pewik and the duetted song is a rhythmic pee-tic-keek. There is some geographical variation in both appearance and vocalisation.

Diet

Yellow tyrannulets are active birds, seen in pairs or family groups feeding on insects, spiders and small berries. The prey is gleaned from foliage or taken in short sallies.

References

Further reading

External links

• Yellow tyrannulet photos on antpitta.com

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Genera of passerines and their extinct allies

• Kingdom: Animalia
• Phylum: Chordata
• Class: Aves
• Clade: Psittacopasseres
• Order: Passeriformes

Passeriformes
incertae sedis †Corvitalusoides †Jamna †Resoviaornis †Wieslochia †Winnicavis †Yunnanus Acanthisitti Acanthisittidae Acanthisitta †Dendroscansor †Kuiornis †Pachyplichas †Traversia Xenicus Eupasseres Tyranni †Crosnoornis Eurylaimides Calyptomenidae Calyptomena Smithornis Eurylaimidae Corydon Cymbirhynchus Eurylaimus Psarisomus Pseudocalyptomena Sarcophanops Serilophus Philepittidae Neodrepanis Philepitta Pittidae Erythropitta Hydrornis Pitta Sapayoidae Sapayoa Tyranni See below ↓ Passeri See below ↓

Tyranni

Conopophagidae Cephalopterus Conopophaga Pittasoma Cotingidae Ampelioides Ampelion Carpodectes Carpornis Conioptilon Cotinga Doliornis Gymnoderus Haematoderus Lipaugus Querula Perissocephalus Phibalura Phoenicircus Phytotoma Pipreola Porphyrolaema Procnias Pyroderus Rupicola Snowornis Xipholena Zaratornis Formicariidae Chamaeza Formicarius Furnariidae Berlepschia †Pseudoseisuropsis Sclerurinae Geositta Sclerurus Dendrocolaptinae Dendrocolaptini Campylorhamphus Dendrexetastes Dendrocolaptes Dendroplex Drymornis Drymotoxeres Glyphorynchus Hylexetastes Lepidocolaptes Nasica Xiphocolaptes Xiphorhynchus Sittasomini Certhiasomus Dendrocincla Deconychura Sittasomus Furnariinae Xenops Pygarrhichini Microxenops Ochetorhynchus Pygarrhichas Furnariini Cinclodes Furnarius Geocerthia Limnornis Lochmias Phleocryptes Premnornis Pseudocolaptes Tarphonomus Upucerthia Philydorini Anabacerthia Anabazenops Ancistrops Automolus Cichlocolaptes Clibanornis Dendroma Heliobletus Megaxenops Philydor Syndactyla Thripadectes Synallaxini Acrobatornis Anumbius Aphrastura Asthenes Certhiaxis Coryphistera Cranioleuca Hellmayrea Leptasthenura Limnoctites Margarornis Mazaria Metopothrix Phacellodomus Premnoplex Pseudasthenes Pseudoseisura Roraimia Schoeniophylax Siptornis Spartonoica Sylviorthorhynchus Synallaxis Thripophaga Xenerpestes Grallariidae Cryptopezus Grallaria Grallaricula Hylopezus Myrmothera Melanopareiidae Melanopareia Pipridae Ceratopipra Chiroxiphia Chloropipo Corapipo Cryptopipo Heterocercus Ilicura Lepidothrix Machaeropterus Manacus Masius Neopelma Pipra Pseudopipra Tyranneutes Xenopipo Rhinocryptidae Acropternis Eleoscytalopus Eugralla Liosceles Merulaxis Myornis Psilorhamphus Pteroptochos Rhinocrypta Scelorchilus Scytalopus Teledromas Thamnophilidae Euchrepomidinae Euchrepomis Myrmornithinae Myrmornis Pygiptila Thamnistes Thamnophilinae Formicivorini Formicivora Myrmochanes Myrmotherula Terenura Microrhopiini Ammonastes Aprositornis Clytoctantes Epinecrophylla Microrhopias Myrmophylax Myrmorchilus Neoctantes Pithyini Cercomacra Cercomacroides Drymophila Gymnopithys Hypocnemis Oneillornis Phaenostictus Phlegopsis Pithys Rhegmatorhina Sciaphylax Willisornis Pyriglenini Akletos Ampelornis Gymnocichla Hafferia Hylophylax Hypocnemoides Myrmeciza Myrmelastes Myrmoborus Myrmoderus Percnostola Poliocrania Pyriglena Rhopornis Sclateria Sipia Thamnophilini Batara Biatas Cymbilaimus Dichrozona Dysithamnus Frederickena Herpsilochmus Hypoedaleus Isleria Mackenziaena Megastictus Radinopsyche Rhopias Sakesphoroides Sakesphorus Taraba Thamnomanes Thamnophilus Xenornis Tityridae Iodopleura Laniisoma Laniocera Myiobius Onychorhynchus Oxyruncus Pachyramphus Schiffornis Terenotriccus Tityra Xenopsaris Tyrannidae Agriornis Alectrurus Anairetes Aphanotriccus Arundinicola Atalotriccus Attila Calyptura Camptostoma Capsiempis Casiornis Cnemarchus Cnemotriccus Cnipodectes Colonia Colorhamphus Conopias Contopus Corythopis Culicivora Elaenia Empidonax Empidonomus Euscarthmus Fluvicola Griseotyrannus Gubernetes Guyramemua Hemitriccus Heteroxolmis Hirundinea Hymenops Inezia Knipolegus Lathrotriccus Legatus Lessonia Leptopogon Lophotriccus Machetornis Mecocerculus Megarynchus Mionectes Mitrephanes Muscigralla Muscipipra Muscisaxicola Myiarchus Myiodynastes Myiopagis Myiophobus Myiornis Myiotheretes Myiotriccus Myiozetetes Nengetus Neopipo Neoxolmis Nephelomyias Nesotriccus Ochthoeca Ochthornis Oncostoma Ornithion Phelpsia Philohydor Phyllomyias Phylloscartes Piprites Pitangus Platyrinchus Poecilotriccus Pogonotriccus Polystictus Pseudelaenia Pseudocolopteryx Pseudotriccus Pyrocephalus Pyrope Pyrrhomyias Ramphotrigon Rhynchocyclus Rhytipterna Satrapa Sayornis Serpophaga Silvicultrix Sirystes Stigmatura Sublegatus Suiriri Syrtidicola Tachuris Taeniotriccus Todirostrum Tolmomyias Tumbezia Tyrannopsis Tyrannulus Tyrannus Uromyias Xenotriccus Xolmis Zimmerius

Passeri

Acanthizidae Acanthiza Acanthornis Aethomyias Aphelocephala Calamanthus Gerygone Hylacola Neosericornis Oreoscopus Origma Pachycare Pycnoptilus Pyrrholaemus Sericornis Smicrornis Atrichornithidae Atrichornis Callaeidae Callaeas †Heteralocha Philesturnus Climacteridae Climacteris Cormobates Cnemophilidae Cnemophilus Loboparadisea Dasyornithidae Dasyornis Maluridae Amytornithinae Amytornis Malurinae Malurini Chenorhamphus Clytomyias Malurus Sipodotus Stipiturini Stipiturus Melanocharitidae Melanocharis Oedistoma Rhamphocharis Toxorhamphus Meliphagidae Acanthagenys Acanthorhynchus Anthochaera Anthornis Ashbyia Bolemoreus Caligavis Certhionyx Cissomela Conopophila Entomyzon Epthianura Foulehaio Gavicalis Gliciphila Glycichaera Glycifohia Grantiella Guadalcanaria Gymnomyza Lichenostomus Lichmera Macgregoria Manorina Meliarchus Melidectes Melilestes Melionyx Meliphacator Meliphaga Melipotes Melithreptus Melitograis Microptilotis Myza Myzomela Nesoptilotis Oreornis Plectorhyncha Philemon Phylidonyris Ptiloprora Ptilotula Prosthemadera Purnella Pycnopygius Ramsayornis Stomiopera Stresemannia Sugomel Territornis Timeliopsis Trichodere Vosea Xanthotis Menuridae Menura Notiomystidae Notiomystis Orthonychidae Orthonyx †Palaeoscinidae Palaeoscinis Pardalotidae Pardalotus Pomatostomidae Garritornis Pomatostomus Ptilonorhynchidae Ailuroedus Amblyornis Archboldia Chlamydera Prionodura Ptilonorhynchus Scenopoeetes †Sericuloides Sericulus Corvides See Corvides Passerida See Passerida

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