English and Scientific names:

Black-whiskered Vireo (Vireo altiloquus)

Number of individuals:

1 bird, adult plumage, sex unknown

Locality: LOUISIANA:


Specific Locality:

Grand Isle, at the entrance behind the Sureway

Date(s) when observed:

16 April 2006

Time(s) of day when observed:


Reporting observer and address:

Erik I. Johnson,

Lafayette, LA

Other observers accompanying reporter who also identified the bird(s):



Other observers who independently identified the bird(s):

Cecile Johnson

Light conditions (position of bird in relation to shade and to direction and amount of light):

in mid-story of closed canopy live oak forest mixed direct light and shade in otherwise sunny conditions

Optical equipment:

10x42 Swarovski EL

Distance to bird(s):


Duration of observation:

20 min


coastal live oak forest

Behavior of bird:

Foraging slowly moving from one branch to another providing a variety of viewing angles


large bill, distinct black malar stripe, appeared fairly drab olive overall compared to Red-eyed Vireo lacking yellowish markings in underparts


none heard

Similar species:

Red-eyed Vireo would be the only likely bird of confusion. But the distinct malar stripe seen at a variety of angles, along with the long heavy bill and overall drabness, separated it from a Red-eyed Vireo

Photographs or tape recordings obtained?

Erik I. Johnson

Previous experience with this species:

none life bird.

Identification aids:

Sibley Guide

This description is written from:

notes made after the observation (date:26 Apr 2006) and memory.

Are you positive of your identification? If not, explain:




Erik I. Johnson

Date and time:

16 December 2008, 2:30pm