It is a small bird, 12.5 cm in length. It is olive-green above and whitish or pale yellow below. It has two white bars on the wing, pale edges to the flight-feathers and a pale yellow stripe between the bill and eye. The eye is grey-brown.
The St. Andrew Vireo is classified as Vulnerable (VU), considered to be facing a high risk of extinction in the wild.
The San Andres Vireo or St. Andrew Vireo (Vireo caribaeus) is a threatened species of vireo endemic to the Colombian island of St. Andrew in the Caribbean Sea, located off the east coast of Nicaragua. Due to habitat loss from the ever expanding population on this small island, the species has now become limited to a few localities on the southern half of the island, but it is still common in some of these areas. It is found in most habitat types on the island. More