Sirystes (Sirystes sibilator)

Sirystes

[order] Passeriformes | [family] Tyrannidae | [latin] Sirystes sibilator | [UK] Sirystes | [FR] Tyran siffleur | [DE] Grauschopftyrann | [ES] Mosquero Silbador | [IT] Siriste sibilante | [NL] Sirystestiran

Subspecies

Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range

Physical charateristics

There are some differences in plumage between the subspecies but all have a black crown with a generally raised crest and grey to white underparts.

Listen to the sound of Sirystes

[audio:http://www.aviflevoland.nl/sounddb/S/Sirystes.mp3]

Copyright remark: Most sounds derived from xeno-canto

wingspan min.: 0 cm wingspan max.: 0 cm
size min.: 18 cm size max.: 19 cm
incubation min.: 0 days incubation max.: 0 days
fledging min.: 0 days fledging max.: 0 days
broods: 0   eggs min.: 0  
      eggs max.: 0  

Range

It is found in Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Panama, Paraguay, Peru, Suriname,

Habitat

Its natural habitat is the canopy of subtropical or tropical moist lowland forests. Also in forest and secondary woodlands.

Reproduction

Nest is built high up in a tree cavity. Both parents care for the nestlings bringing insects. No further details.

Feeding habits

Forages mostly in pairs for insects by perching and hover-gleaning insects from foliage. Will also take fruit.

Conservation

This species has a large range, with an estimated global extent of occurrence of 6,900,000 km². The global population size has not been quantified, but it is believed to be large as the species is described as ‘frequent’ in at least parts of its range (Stotz et al. 1996). Global population trends have not been quantified, but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e., declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern.
Sirystes status Least Concern

Migration

Resident but Southern populations migrate during austral winter

Distribution map

Sirystes range map

Literature

Title BEHAVIOR, MORPHOLOGY, AND SYSTEMATICS OF SIRYSTES SIBILATOR (TYRANNIDAE)
Author(s): WESLEY E . LANYON AND JOHN W . FITZPATRICK
Abstract: Field and laboratory studies support recent hypoth..[more]..
Source: The Auk 100: 98-104. January 1983

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