English and Scientific names:

Yellow-green Vireo, Vireo flavoviridis


Number of individuals: 

One adult

Locality: LOUISIANA: 


Specific Locality:

Peveto Woods


Date(s) when observed:

16&17 May, 2009


Time(s) of day when observed:  

16 May 5:15-5:25 p.m.; 17 May mid-morning


Reporting observer and address:

Phillip Wallace

New Orleans, LA

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

Gary Broussard discovered. Also seen and ID\'d by David Muth on the 16th. Seen by Muth, Wallace, Conover, Myers, and Patton on 17 May.


Other observers who independently identified the bird(s)

Devin Bosler, et al

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

Various lighting conditions over the duration of the observations from excellent to back-lit.

Optical equipment: 

Eagle 10x binoculars

Distance to bird(s): 

3-15 meters

Duration of observation:

20 minutes


Live Oak, Hackberry, etc.

Behavior of bird: 

Feeding actively and resting. Seemed to feed more actively than is typical for Red-eyed Vireo.



Red-eyed type vireo.

Bright yellow undertail with paler yellow on the flanks and most of the underparts with yellow going onto the cheeks and neck. Dull white throat; dull white streak in middle of breast and belly. Dull white in vent area. The rest of the underparts were pale yellow.

The back and wings were fairly bright yellowish-green with the wings perhaps a little duller. In the video, the yellow wing linings (underwing coverts) can be seen.

The face pattern showed less contrasty than on Red-eyed Vireo. The white supercilium didn\'t contrast as strongly with the dark eyeline or the border of the gray cap. The lower border of the gray cap was not as dark as on a Red-eyed.

The bill appeared longer and slightly thicker than that of a Red-eyed. The bill was dull horn colored.

The eye was dark with reddish tones in some light.

The only noticeable plumage difference between the two birds that I could see in the video is that the second bird (Johnsons Bayou) had slightly more white on the underparts (than Peveto), but it still had a great deal of yellow.



Similar species:

The yellow on this birds was far beyond what would be on the bightest Red-eyed. The face pattern and back color also indicate Yellow-green, as do the yellow wing linings.

Photographs or tape recordings obtained?

Video submitted to LBRC.

Previous experience with this species: 

Iíve seen once before in LA and several times in the neotropics.

Identification aids:

After observation - Sibley and Costa Rica guides

This description is written from: 

Notes written the evening of the 16th and from the video. 

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



Date and time: 

18 June, 2009