Yellow-green Vireo

Vireo flavoviridis




Vireos (Vireonidae)

Code 4


Code 6



Egg Color:

White with small brown spots

Number of Eggs:

2 - 4

Incubation Days:

13 - 14

Egg Incubator:


Nest Location:

5 - 40 feet above ground., On a forked branch in a bush or small sapling.

Nest Material:

Grasses, plant fiber, lichen, moss, cobwebs, and strips of papery bark.





Yellow-green Vireo: Medium-sized vireo with olive-green upperparts, pale yellow underparts, and bright yellow sides and flanks. Crown is dull gray, eyebrows are white, and eyestripe is dark. Eyes are red. Sexes are similar.

Range and Habitat

Yellow-green Vireo: This species breeds from coastal Mexico southward. It is a rare breeder in the Rio Grande Valley of Texas, but can often be seen along the Gulf coast of Texas during its spring migration. This bird spends winters in South America and its preferred habitats include streamside thickets and woodlands.

Breeding and Nesting

Yellow-green Vireo: Two to four brown spotted, white eggs are laid in a nest made of grasses, plant fiber, lichens, moss, cobwebs, and strips of papery bark, and built from 5 to 40 feet above the ground. Incubation ranges from 13 to 14 days and is carried out by the female.

Foraging and Feeding

Yellow-green Vireo: Feeds on a wide variety of insects and spiders; also eats seeds and berries. Forages in the middle to upper levels of forests, sometimes joining mixed-species flocks; may hover briefly to take insects or fruits.


Yellow-green Vireo: Song varies from rich and clear to nasal and abrasive, a non-rhythmic, jerky "chiree-chree, swe, chiree-chree." Calls include dry chatter and coarse mewing "rrieeh."

Similar Species

Yellow-green Vireo: Red-eyed Vireo is paler below and has markings that are more distinct on head.


Belly, undertail coverts, chest, flanks, and foreneck.

Back, rump, hindneck, wings, and crown.
The crown is the top part of the birds head.
Parts of a Standing bird X
Head Feathers and Markings X
Parts of a Flying bird X