Vireos are small, quick moving birds that can sometimes be difficult to get a look at. Most of them migrate in springtime right along with the warblers, and most have distinctive songs and calls. In Kentucky, there are seven vireo species that move through the state with some being very common and others being rarer. Here is everything you need to know about those seven species.
Bell’s Vireo
Identification
Bell’s Vireos have a sandy colored back and wings, gray head, and light-colored underside. The top of their head is darker than the rest of their body, they have white wing bars, and white around their eye. They do look pretty similar to Warbling Vireos and oftentimes the best way for beginners to identify them is by song to be certain.
Range
Bell’s Vireos winter on the western coast of Central America, Mexico, and Baja California. In spring, they move north spending the summer in Central Mexico, the southeastern United States, and parts of the midwestern United States as far east as Ohio.
Diet and Foraging Habits
Bell’s Vireos are active feeders, taking insects and spiders from leaves and branches. They also eat some berries but most of their diet is small invertebrates.
Where to Find This Bird
Bell’s Vireos can be found in scrubby areas with thick underbrush. They are not typically found in forests or areas with many large trees but will occur in areas with some. Listen for their calls which sound like a distinctive “Cheedle cheedle chee cheedle cheedle chu.”
Blue-headed Vireo
Identification
The aptly named Blue-headed Vireo has a grayish-blue head, a white eye ring, an olive-colored back and wings, and with white wing bars. They have a light underside with yellowish sides.
Range
Blue-headed Vireos winter in Central America, eastern Mexico, and the southwestern United States. In spring they spread north through the eastern U.S. and into their breeding areas in the northeastern U.S. and southern Canada.
Diet and Foraging Habits
Blue-headed Vireos feed on a variety of different insects including larva such as caterpillars. They also eat spiders and some fruits. Blue-headed Vireos are fairly active hunters, usually searching out prey from near the tree trunks. They will actively chase after food items too.
Where to Find This Bird
Blue-headed Vireos inhabit many different types of forests including deciduous and coniferous. Unlike many other eastern vireo species, Blue-headed Vireos do not shy away from stands of evergreens to breed in. During migration, they make stop overs in insect rich areas such as trees and bushes lining streams and rivers.
Philadelphia Vireo
Identification
Philadelphia Vireos have a brownish gray cap, back, and wings. They have a yellow throat and underside. There is more of a contrast between their cap and the rest of the face and underside than other similar looking vireo species such as Warbling and Bell’s. They have white striping around their eye.
Range
Philadelphia Vireos winter in Central America and southern Mexico. In spring, they move north to their breeding areas all across southern Canada and in some of the most northern parts of the midwestern and northeastern United States.
Diet and Foraging Habits
Philadelphia Vireos eat a variety of insects and other small invertebrates. Some common prey items include caterpillars and spiders. They will also eat some fruits.
Where to Find This Bird
Philadelphia Vireos can be found in forested areas, near rivers, and in places with thick underbrush. For people living in the continental United States, the best time to see this species is usually during migration where hey mix in with other small birds.
Red-eyed Vireo
Identification
Red-eyed Vireos have an olive-colored back, a light underside, a grayish blue cap, and a light-colored eye stripe edged in darker blue to black. They have a namesake red eye that sets them apart from most other vireo species in United States.
Range
Red-eyed Vireos winter in northern South America, then move north into the continental United States and Canada to spend the summer. In the U.S., this species inhabits most of the midwestern and eastern states. They also summer in every state bordering Canada, even Washington.
Diet and Foraging Habits
Red-eyed Vireos have diets that vary depending on the time of year. In summer they feed primarily on insects, while other times of the year they eat more plant matter and fruit.
Where to Find This Bird
Red-eyed Vireos can be found in forested areas consisting of deciduous or mixed deciduous trees. When the trees are leafy, they are easier to hear than they are to see as they spend much of their time up in the canopy.
Warbling Vireo
Identification
Warbling Vireos have a brown back, head, and wings. Their underside is a yellowish cream color, and they have a white stripe above and below their eye.
Range
Warbling Vireos spend the winter in Central America and southern Mexico. In spring they move north into most of the continental United States and western Canada where they spend the summer.
Diet and Foraging Habits
Warbling vireos are insectivores and eat a variety of beetles, flies, and caterpillars. They forage high up in trees and pick prey off of leaves and branches.
Where to Find This Bird
Warbling Vireos are most often found in deciduous woods or even just stands of deciduous trees. Since they usually forage high up in trees, the easiest way to locate one is often times to hear them singing. The song of the Warbling Vireo is very bubbly and sounds like one long run-on sentence.
White-eyed Vireo
Identification
White-eyed Vireos have a gray head, an olive green back, two white wing bars on each side, and a light underside with a yellow wash. One of their most distinctive features is their white eye. They also have yellow on their face from the base of their bill over their eye.
Range
White-eyed Vireos winter in some of the northern Central American countries, Eastern Mexico, and the southeastern United States. They move north in the spring and reside in most of the northeastern states south of Wisconsin and Michigan. White-eyed Vireos are very common in the states in the southeastern U.S. and are rare visitors in northern states in the Midwest and Northeast.
Diet and Foraging Habits
White-eyed Vireos eat a wide variety of insects including moths, caterpillars, beetles, and pretty much anything small enough for them to catch and consume. Their diet also consists of some fruits as well.
Where to Find This Bird
White-eyed Vireos reside in places with thicker understories including near streams and rivers, overgrown field edges, and deciduous or mixed woods. Look for this species moving quickly through bushes and shrubs from around 6 to 12 feet off the ground.
Yellow-throated Vireo
Identification
Yellow-throated Vireos have a yellow head, face, and of course throat. Their throat is a brighter color of yellow than the rest of their head which is darker, and they have brighter yellow around their eye as well. The back and wings of this species are gray, and they have a white underside. Overall, they are very sporty looking birds.
Range
Yellow-throated Vireos winter in northern South America, Central America, southern Mexico, and the Carribean. In spring, they move north into most of the eastern United States and some of the southeastern parts of Canada.
Diet and Foraging Habits
Yellow-throated Vireos eat insects, small invertebrates, and occasionally plant matter such as seeds and fruits. They tend to forage higher up in trees than other species.
Where to Find This Bird
Yellow-throated Vireos can be found in deciduous forests where they can be found around gaps and forest edges. Their preferred habitats tend to be larger forests as opposed to small groves of trees. Look for this species in the mid to high canopy foraging and dinging.
Summary
Vireos are small and quick moving birds that can be enjoyable to view and sometimes tricky to identify. We hope that this post has helped to answer some questions about the Vireos of Kentucky.
