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Microspizias superciliosus

Tiny Hawk


Microspizias superciliosus

(Linnaeus, 1766)
Esparvero Chico
Gavião-miudinho

Family: Accipitridae
Order: Accipitriformes
Class: Aves
Phylum / Division: Chordata
Kingdom: Animalia

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Synonyms: Falco superciliosus, Accipiter superciliosus.

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Conservation status according to BirdLife International: Least Concern


Description


Is a raptor of extremely small size, representing one of the most diminutive members of the family Accipitridae worldwide. It exhibits pronounced sexual size dimorphism, with females being significantly larger, measuring 24 to 28 cm in length, whereas males range from 20 to 24 cm. Adults display dark slate-gray to blackish upperparts, contrasting sharply with white underparts that are finely barred with dark gray or brown. A subtle, pale whitish supercilium is visible above the eyes, which are a striking bright red to reddish-orange in mature individuals. The legs, feet, and cere are a vivid bright yellow. Juvenile specimens present a distinct rufous morph or a gray morph, featuring broader, coarser barred patterns across the breast and belly.

Geographical distribution: Occurs widely across the Neotropical region, ranging from southern Central America in Nicaragua, Costa Rica, and Panama, southward through much of northern and central South America. Its distribution encompasses Colombia, Venezuela, the Guianas, Ecuador, Peru, Bolivia, and Brazil, reaching its southernmost limits in northeastern Argentina (specifically the Misiones province) and eastern Paraguay.

Habitat: Primarily inhabits the canopy and edges of humid lowland evergreen forests, mature secondary growth, and forest clearings containing tall, scattered trees. Although closely associated with primary forests, it can adapt to disturbed wooded environments provided there is sufficient canopy cover. It is typically found at elevations from sea level up to 800 to 1,000 meters, becoming exceptionally scarce in higher montane terrains.

Feeding: Sustains itself almost entirely on small birds, exhibiting a highly specialized predatory behavior targeted toward hummingbirds (Trochilidae) and small passerines such as manakins (Pipridae) and tanagers (Thraupidae). It employs a sit-and-wait hunting strategy, remaining completely motionless and hidden within dense foliage before launching an explosive, highly agile aerial dash to seize prey in mid-air or snatch them directly from branches.

Behavior: Is a remarkably cryptic and quiet species, making it highly elusive and difficult to detect in the wild. It spends the vast majority of its time perched inconspicuously in the canopy or subcanopy of tall trees. Its flights are swift and short between tree crowns. On clear mornings, individuals can occasionally be seen soaring briefly over the forest canopy to exploit thermal drafts. It is typically observed as a solitary individual or in pairs during the breeding season.

Nesting: Involves the construction of a platform-like nest made of thin twigs, situated at a considerable height in the fork of an emergent or dead tree well within the upper forest canopy. The female typically lays a clutch of 1 to 3 bluish-white eggs, often speckled with brown spots. Incubation is performed almost exclusively by the female, while the male takes on the role of hunting and delivering prey to the nest site during this period and the early stages of chick rearing.

Conservation status: Is currently classified as Least Concern (LC) on the IUCN Red List. Despite its vast geographic distribution, local populations are generally sparse, and the species is considered naturally rare throughout its range. The primary threat to its long-term survival is the rapid rate of deforestation and habitat fragmentation across the Neotropics, which directly impacts its nesting habitat and prey availability.



Compilation and publication: EcoRegistros – 09/10/2026




Geographic distribution


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Species photographs

Count: 10

Foto
Photography ID: 539864
  Adult

Belterra
Pará
Brazil
06/23/2023
Glauco Oliveira
Foto
Photography ID: 495908
♀
  Immature

Ruta 14 pasando San Pedro
Misiones
Argentina
05/21/2022
Sergio Moya
Foto
Photography ID: 225586
  Adult

Refugio Tingazú
Misiones
Argentina
10/31/2017
Sergio Moya
Foto
Photography ID: 107751
  Adult

Tapiraí
São Paulo
Brazil
07/26/2015
João Sérgio Barros
Foto
Photography ID: 55905
  Immature

Bio Reserva Karadya
Misiones
Argentina
07/02/2014
Julián Baigorria


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Species reports



 Detail of places sorted by number of records






Species records

Count: 25



Page 1 of 3
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
247555625/05/2026ArgentinaMisionesJardin botánico San Pedro1Pablo Bruni
247457825/05/2026ArgentinaMisionesJardín Botánico Yvyrá Pytá, San Pedro1Faustino Hollmann
231056020/06/202517:11ArgentinaMisionesParque Provincial Caá Yarí1Walter Liriel Gómez Umpierrez
230974120/06/202517:11ArgentinaMisionesParque Provincial Caá Yarí1Diego Oscar
230850820/06/202517:11ArgentinaMisionesParque Provincial Caá Yarí1Santiago Juan Torres
181201410/07/2023BrazilAmazonasJardim das Orquideas, Presidente Figueiredo--área geralPablo Eguia
178482223/06/2023BrazilParáBelterraGlauco Oliveira
159200321/05/2022ArgentinaMisionesRuta 14 pasando San PedroSergio Moya
153308311/01/2022ArgentinaMisionesSendero Salto Paraíso, Área Experimental Guaraní1Jorge La Grotteria
139796525/04/2021ArgentinaMisionesRuta 2 Reserva Biosfera YabotíSilvia Ana González
Page 1 of 3

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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. Tiny Hawk (Microspizias superciliosus) – Species account. Accessed from www.ecoregistros.org on 30/10/2026.