Bell's Vireo: 21 Facts You Won't Believe!

Bell's Vireo Fact File

Bird chirps are natural and the purest form of music that vibrates in the atmosphere. So this time we thought about introducing an awesome songbird to you. So presenting the Bell's vireo bird that inhabits inside the American borders.

Bell's vireos (Vireo bellii) are song birds that can be found in the southern region of North America. They are small neotropical migratory birds who grow to a maximum range of 4.5-4.9 in (11.4-12.4 cm) and weighs up to 0.2-0.3 oz (5.7-8.5 g). They are primarily insectivores and feeds on a variety of ground and aerial insects. Bell's vireos are olive-yellow colored Birds with a gray touch to it. On the other hands, the least Bell's vireos (a subspecies of Bell's vireos) are mostly gray in color. They have a small dark beak and a medium sized tail. Their small wings are magnificent and have a span of 6.7-7.5 in (17-19 cm). They are neotrophic migratory birds who migrate between their breeding season and winter season. Bell's vireos are birds of Least Concern but their subspecies (least vireos) are endangered and are under the process of bird conservation.

Further in the article we have some amazing things in store for you. Ahead in the article we have some interesting and funny facts about this bird which will surely amaze you. So keep reading!

And if you are someone who likes reading bird facts, then do not forget to check out our aquatic warbler facts and Fischer's lovebirds facts pages.

Bell's Vireo

Fact File

What do they prey on?

Bugs, spiders, grasshoppers, beetles

What do they eat?

Carnivore (Insectivore)

Average litter size?

3-4 eggs

How much do they weigh?

0.2-0.3 oz (5.7-8.5 g)

How long are they?

4.5-4.9 in (11.4-12.4 cm)

How tall are they?


What do they look like?

Olive, gray

Skin Type


What are their main threats?

Habitat loss

What is their conservation status?

Least Concern

Where you'll find them

Shrubs, bushes, streamsides


New York, North Mexico, Arizona, Texas





Scientific Name

Vireo bellii





Bell's Vireo Interesting Facts

What type of animal is a Bell's vireo?

Bell's vireo are small song birds like the hermit thrush who live in the southern and south west region of North America and nearer places. They belong to the phylum Chordata.

What class of animal does a Bell's vireo belong to?

The Bell's vireo belongs to the class Aves, order Passeriformes, family Vireonidae and genus Vireo. Their binomial nomenclature is Vireo bellii.

How many Bell's vireos are there in the world?

As per the IUCN Red list, Bell's vireo are species of Least Concern. So counting them in numbers is not really possible. But after looking at their diverse habitat range and wide spread distribution, it can be estimated that they inhabit the world with some great numbers. But the Least Bell's vireo, a subspecies of Bell's vireo that lives in the southern California is endangered and beeds conservation.

Where does a Bell's vireo live?

Bell's vireos mainly live in the continent of North America. They live in the valleys, and shrublands. They are bird species who make their nest in shurbs. These birds camouflage their nest to protect it from other organisms. They live in bushes, shrubs, stream sides and willows and avoid living in places like open areas and grasslands.

What is a Bell's vireo's habitat?

Bell's vireos have a wide range of habitats across the southern and south western parts of North America. Bells vireo range map consists of places situated in central and southern United States and northern Mexico such as Texas, Arizona, New York and New Mexico.

Who does a Bell's vireo live with?

Bell's vireos are social birds who interect within similar species only. They are monogamous birds who breed with a definite partner through out the breeding season.

How long does a Bell's vireo live?

Bell's vireos can live up to an average age of 6-7 years. Their mortality rate decreases due to predation and brood parasites who destroy their eggs.

How do they reproduce?

Bell's vireos are monogamous birds who breed with a definite partner. Though they may have two seasons for breeding in one year but that is okay. The breeding season in these birds commence from the month of April (also May in some places) and stays till late June to early July. Both males and females build their nests together in shrubs. In those nests, females lay their eggs. Per season a female can lay up to 3-4 eggs. Both the patents take care of their nest and nestlings until they are a bit self capable.

What is their conservation status?

According to the IUCN Red List, Bell's vireo birds are marked under the conservation category of Least Concern. But due to rapid habitat loss and predation, the Least Bell's vireo birds (subspecies of Bell's vireo) have gone endangered and require conservation.

Bell's Vireo Fun Facts

What do Bell's vireos look like?

Bell's vireo are songbirds of North America found in the central and souther US and near northern Mexico. They are small in size and grow to a maximum length of 4.5-4.9 in (11.4-12.4 cm). Bell's vireo are olive-gray colored birds but the Least Bell's vireo are mostly gray in color. Bell's vireo coloring patterns are very attractive and cool. They have a small beak with thin legs and cute wings. And can weigh up to 0.2-0.3 oz (5.7-8.5 g). They have a small wing span of 6.7-7.5 in (17-19 cm).

Bell's vireoes are small songbirds with a round head and black eyes

How cute are they?

Bell's vireo are small bird species native to the American land. They are extremely cute and adorable and their calls feel sweet as sugar to the ears.

How do they communicate?

Bell's vireo bird communicates through its sweet calls. They are not that loud. Their songs are of moderate loudness. They sing couplets in ascending or descending note patterns and are very bubbly and clumsy. They create sharp and rough sounds while protecting their nests.

How big is a Bell's vireo?

Bell's vireo are not that big in size. They are small song birds who grow to a maximum length range of 4.5-4.9 in (11.4-12.4 cm). They have small beautiful wings with a wingspan of 6.7-7.5 in (17-19 cm).

How fast can a Bell's vireo fly?

Bell's vireo are small migratory bird species who can fly high in the sky at a good speed. Though their flight speed is never recorded so there is no exact information about how fast can they fly.

How much does a Bell's vireo weigh?

Bell's vireo are small birds who can grow to a maximum length of 4.5-4.9 in (11.4-12.4 cm) and can weigh up to 0.2-0.3 oz (5.7-8.5 g).

What are the male and female names of the species?

There is no exact name given to the gender binary of Bell's vireo bird. There is no such difference in the male and female morphology. Some visible differences that can be spotted are males being a little bigger than females.

What would you call a baby Bell's vireo?

All bird babies are called chicks. Baby Bell's vireo bird breaks out of its egg after an incubation period of 13-15 days. The fledging time they require is between 9-11 days.

What do they eat?

In Bell's vireos breeding range or region, they enjoy a good availability of food. In their natural habitat, they have enough food variety to feed on. Vireos are mainly carnivorous bird species that can be seen very rarely eating berries. Some of the common food available in their habitat are bugs, beetles, grasshoppers, spiders, and flies. They are primarily insectivores, not predators, who feed on any insect available near them.

Are they poisonous?

Bell's vireos are not poisonous in nature. They are small insectivorous bird species that feeds on insects and very rarely, berries. They cause no harm to humans. Rather, humans are destroying their habitats which has resulted in a decrease in the number of Least Bell's vireo birds and they are under bird conservation now.

Would they make a good pet?

Bell's vireos are not kept as pets. They belong to the wild and can't really survive in captivity. And people generally don't keep Bell's vireos as pets or in another sentence, they are not that famous as pets. Moreover, they are protected species, and keeping them as pets is illegal.

Did you know...

Bell's vireos are named after John Graham Bell by ornithologist Audubon.

Bell's vireos play the role of a host in nurturing the brown-headed cowbird chicks. These cowbirds are brood parasites who lay their eggs in Bell's vireos nest. These cowbirds play an important role in the nest failure of vireos. If cowbirds lay their egg before the female vireo has laid their eggs, vireos abandon their nest. But if the cowbird egg is laid in the nest in the presence of vireo eggs, vireos take care of the egg and nurtures it.

When does the Bell's vireo migrate?

Bell's vireos like their endangered subspecies Least Bell's vireos are neotropical migrant birds who migrate between the breeding and winter season. Males arrive in the breeding region earlier than  females and establish their territory like the hummingbirds. Males can be a little aggressive during their breeding season but that causes no harm.

What do Bell's vireos sound like?

Bell's vireos are songbirds who can be found in their natural habitats in southern and southwestern North America. Bell's vireos are 'songbirds' and that can be enough description of their voice. For more description, it can be said that these birds are sweet singers as long as they are not enraged. Their calls are trills of ascending and descending notes. Which is very soothing to the ears.

Here at Kidadl, we have carefully created lots of interesting family-friendly animal facts for everyone to discover! For more relatable content, check out these pigeon facts and owl facts for kids.

You can even occupy yourself at home by coloring in one of our free printable Bells vireo coloring pages.



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