Warbling Vireo: Small vireo, gray to olive-gray upperparts, white underparts; sides sometimes washed with yellow. Eyes are dark brown, have thick, white eyebrows and faint, dark eye-lines. Gray wings and tail. Legs and feet are blue-gray. Has the largest breeding range of any North American vireo.
Range and Habitat
Warbling Vireo: Breeds from British Columbia, southern Mackenzie, Manitoba, and New Brunswick south to northern Mexico, Louisiana, and Virginia. Spends winters in the tropics. Preferred habitats include deciduous woodlands, especially near streams and in isolated groves and shade trees.
The Warbling Vireo is also known as the Warbling Greenlet and Eastern Warbling Vireo.
Although common in many areas, their population has decreased considerably because of extensive spraying of pesticides on shade trees.
They have the largest range of any member of their family in North America, being found from western and southern Canada and throughout most of the United States.
A group of vireos are collectively known as a "call" of vireos.
The Warbling Vireo has a large range covering much of the Americas and the nearby island nations and territories to which it is native. This bird prefers boreal, temperate, subtropical, or tropical forest ecosystems as well as inland wetlands such as rivers, streams, creeks, and waterfalls. The global population of this bird has not been fully quantified but does not show signs of decline that would necessitate inclusion on the IUCN Red List. For this reason, the current evaluation status of the Warbling Vireo is Least Concern.