English and Scientific names:

Yellow-green Vireo, Vireo flavoviridis

Number of individuals: 


Locality: LOUISIANA: 


Specific Locality:

Peveto Woods, BRAS Sanctuary

Date(s) when observed:


Time(s) of day when observed:  

mid-morning to mid-afternoon

Reporting observer and address:

Paul Conover

Lafayette, LA

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

Mac Myers, Dave Patton, Matt Pontiff, many others

Other observers who independently identified the bird(s)

Gary Broussard discovered the bird on 5/16, and shared it with David Muth and Phillip Wallace.

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

Overcast but bright.

Optical equipment: 

Zeiss 10s, Nikon d50 w/200 mm lens, Sony camcorderw/60X zoom.

Distance to bird(s): 

At times, less than 10 feet.

Duration of observation:

Altogether, well over an hour of viewing time through the day.


Remnant chenier, recovering from Hurricane Gustav. Undergrowth all new growth, low herbaceous plants.

Behavior of bird: 

Foraged alone or with small flock of migrant warblers and vireos. Foraged at all levels. Bird was very tolerant of human presence.


A Red-eyed type vireo, similar in overall size to that species. This bird was much duller in general coloration than the bird found on 5/16 by Muth and Wallace, but was still much brighter than any Red-eyed Vireo.


In general pattern it reminded me of an eastern Bellís Vireo or perhaps Orange-crowned Warbler, with grayish head, dull green back, and yellowish underparts. The bird was somewhat chunky and short-tailed.


Crown dull gray, bordered weakly on sides slightly darker grayóbut not as pronounced as on Red-eyed. Sides of face pale dingy gray except for weak dusky eyeline running from lores back to nape or hindcrown and yellowish wash extending onto rear of auriculars from the sides of the neck. Chin and throat whitish. Irides red or reddish-brown. Bill pale, horn perhaps, with irregular dusky line on mandible. Pale bill made nostril prominent in contrast. Back dull green or olive-green, wings slightly darker, coverts and flight feathers margined in same green as mantle. Tail appeared equal in color to upperparts. The underparts were washed in an even if dull yellow that contrasted with the white of the chin and throat. The white of the chin and throat extended centrally down the underparts, becoming dingier as it met the breast, then rounding out at the vent. All else below was yellow. The yellow of the flanks extended evenly except at the upper breast, where it cut in towards the center and was only narrowly separated by the thin dingy white central stripe which was at its thinnest in this area. Legs grayish or bluish gray, again, reminiscent of Bellís Vireo.


I didnít hear it.

Similar species:

Red-eyed, Black-whiskered Vireos differ in plumage. No other vireos that Iím aware of are close.

Photographs or tape recordings obtained?

Yes, photos and videotape, none great.

Previous experience with this species: 


Identification aids:


This description is written from: 

Mainly memory, but also perusal of photos.

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




Paul Conover

Date and time: 

June 9, 2009