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Jun 08 2011

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Swainsons Flycatcher (Myiarchus swainsoni)


Swainsons Flycatcher

[order] PASSERIFORMES | [family] Tyrannidae | [latin] Myiarchus swainsoni | [UK] Swainsons Flycatcher | [FR] Moucherolle de Swainson | [DE] Swainsontyrann | [ES] Copeton de Swainson | [NL] Swainsons Tiran

Subspecies

Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range
Myiarchus swainsoni SA widespread
Myiarchus swainsoni albimarginatus
Myiarchus swainsoni ferocior
Myiarchus swainsoni pelzelni
Myiarchus swainsoni phaeonotus
Myiarchus swainsoni swainsoni

Physical charateristics

It is olive-brown above with whitish wing-bars. The throat and breast are white to pale grey while the belly is pale yellow. The bill is pale brown to pinkish at the base of the lower mandible while the upper mandible is dark except in the case of sub-species M. s. phaeonotos resident in south-east Venezuela and neighbouring Brazil and Guyana where the bill is all black. The iris is dark.

Listen to the sound of Swainsons Flycatcher

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Copyright remark: Most sounds derived from xeno-canto

wingspan min.: 0 cm wingspan max.: 0 cm
size min.: 19 cm size max.: 21 cm
incubation min.: 0 days incubation max.: 0 days
fledging min.: 0 days fledging max.: 0 days
broods: 1   eggs min.: 3  
      eggs max.: 4  

Range

South America : widespread

Habitat

Its natural habitats are subtropical or tropical dry forests, subtropical or tropical moist lowland forests, and heavily degraded former forest. They are found in a variety of forested and wooded habitats.

Reproduction

Nest is built in cavity made of dry plant material, moss and even lizard skins. It is placed about 4 meter above ground, also in hollow trees or dead stumps. Clutch size is 3-4 eggs.

Feeding habits

Forages by hover-gleaning and hawking techniques. Feeds on insects but fruit also taken regularly.

Conservation

This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
Swainsons Flycatcher status Least Concern

Migration

Nominate swainsoni (breeding mainly in se. Brazil and Uruguay, migrating north to Venezuela and e. Colombia) [...] in austral winter ( May – Sept.) recorded north through e. Peru, e. Ecuador, e. Colombia, and across most of Venezuela except in the northwest, also on Trinidad.

Distribution map

Swainsons Flycatcher distribution range map

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