English and Scientific names:

Black-whiskered Vireo (Vireo altiloquus)

Number of individuals: 

1 adult (AHY)

Locality: LOUISIANA: 


Specific Locality:

Peveto Woods Sanctuary

Date(s) when observed:

13 May 2007

Time(s) of day when observed:  


Reporting observer and address:

Erik I. Johnson
Baton Rouge, LA

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



Other observers who independently identified the bird(s):

none known

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

various angles/lighting - it was sunny when observing the bird

Optical equipment: 

Swarovski EL 10x42, excellent condition

Distance to bird(s): 

3-10 m

Duration of observation:

10 minutes


coastal oak/hackberry chenier - specifically was seen at the willows along the pond and in the shrubs between the ponds

Behavior of bird: 

It was first seen approaching to pishing/squeeking and then proceeded to feed - not heard calling or singing. 


I first briefly passed it off as a Red-eyed Vireo, but the beak looked especially large.  At second glace, indeed the beak was quite large and I continued to watch the bird carefully, then noticing the malar streaks when the head was at the correct angle.  The malar streaks did not seem to jump out at me as much as a bird I found on Grand Isle last spring, but they were still obvious enough to be seen clearly, even 10 m away.


None heard

Similar species:

Red-eyed Vireo was quickly eliminated due to the large bill and then the distinct malar streaks.

Photographs or tape recordings obtained?

photographs are available upon request

Previous experience with this species: 

Only once seen before - last year at Grand Isle (photos also acquired) and very familiar with the field marks to seperate it from Red-eyed Vireo

Identification aids:

after observation: Sibley's Guide to North American Birds

This description is written from: 

From memory

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


Yes and photos confirm


Erik I. Johnson

Date and time: 

30 May 2007, 2150 central time