Black-whiskered Vireo

Black-whiskered Vireo

Summary:

Profile Black-whiskered Vireo
[Authority] Vieillot, 1808 | [group] Vireos and allies | [order] PASSERIFORMES | [family] Vireonidae | [latin] Vireo altiloquus | [UK] Black-whiskered Vireo | [FR]

[Authority] Vieillot, 1808 | [group] Vireos and allies | [order] PASSERIFORMES | [family] Vireonidae | [latin] Vireo altiloquus | [UK] Black-whiskered Vireo | [FR] Vireo a moustaches noires | [DE] Bartvireo | [ES] Vireo de Bigotes Negros | [NL] Baardvireo | copyright picture

The adult Black-whiskered Vireo has dull olive-green upperparts and white underparts, with yellowish on the flanks and under the tail. It has red eyes and a grey-brown crown with faint dusky edges. There is a dark line through the eyes and a white eyebrow stripe. There is a distinctive black line (the ?whisker?) on the neck sides. Juvenile birds are similar, but have brown-red eyes.

The breeding habitat is open deciduous wooded areas and cultivation, and in Florida also mangroves.

This species breeds in southern Florida, USA, and the West Indies as far south as the offshore islands of Venezuela.

The Black-whiskered Vireo gleans insects from tree foliage, sometimes hovering while foraging. It will also eat small quantities of berries


This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence 30% decline over ten years or three generations). The population size is very large, and hence does not approach the thresholds for Vulnerable under the population size criterion (10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern. [conservation status from birdlife.org]


Clutch size is Two to three white eggs with fine brown, purple, and black specks. The nest is made of twigs, grass, plant fibers, spider webs, cocoons, and lichens. It is lined with grass, pine needles, and hair, and built from 1 to 7 meter above the ground on a thin branch of a shrub or tree. Incubation, solely by the feamle, ranges from 12 to 14 days. This bird suffers from nest parasitism by the Brown-headed Cowbird in its US range, and Shiny Cowbird further south.

Nonbreeding transient and visitor south to ne. Peru, Amaz. Brazil, and Guianas; Trinidad. Breeds in Florida, on West Indies, and on various islands off the coast of Venezuela, including Netherlands Antilles, withdrawing southward from more n. areas.

Specification

  1. Measurements
  2. spanwidth min.: 0 cm
  3. spanwidth max.: 0 cm
  4. size min.: 14 cm
  5. size max.: 15 cm
  6. Breeding
  7. incubation min.: 12 days
  8. incubation max.: 14 days
  9. fledging min.: 0 days
  10. fledging max.: 14 days
  11. broods 1
  12. eggs min.: 2
  13. eggs max.: 3
  14. Conservation Status
  15. Black-whiskered Vireo status Least Concern

Subspecies

  1. Vireo altiloquus canescens
  2. Vireo altiloquus grandior
  3. Vireo altiloquus bonairensis
  4. Vireo altiloquus barbadensis
  5. Vireo altiloquus altiloquus
  6. Vireo altiloquus barbatulus
  7. Vireo altiloquus
  8. NA se USA, West Indies
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