Last updated: December 20, 2021
Verified by: AZ Animals Staff
Image Credit Rudmer Zwerver/

A group of these birds is called a Murder.

Crow Scientific Classification


Read our Complete Guide to Classification of Animals.

Crow Facts

Insects, fruit, carrion
Fun Fact
A group of these birds is called a Murder.
Estimated Population Size
27 million
Biggest Threat
Pet trade
Most Distinctive Feature
Other Name(s)
American crow
36 inches
Incubation Period
18 days
Litter Size
3-7 eggs
Fields, orchards, savannas, suburbs
Coyotes, bobcats
Common Name
Nesting Location
Trees, shrubs, telephone poles

Crow Physical Characteristics

  • Black
Skin Type
Top Speed
59 mph
6-10 years
11-21 ounces
6-10 inches
16-20 inches

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View all of the Crow images!

“Crows can fly up to 60mph”

Crows are best known for their solid black feathers and signature ‘caw’ sound. These birds are omnivores eating everything from insects to seeds. They’re highly intelligent birds.

3 Amazing Crow Facts!

  • These birds have a wingspan of 36 inches
  • A group of these birds is known as a Murder
  • They can put together cause and effect

Where to Find Crows

They live in areas across the United States as well as in Canada. Birdwatchers can spot them throughout the year in most of the United States.

They’re likely to be seen flying over open areas including fields and grasslands. While some birds are fairly quiet, these black birds are known for their loud sounds. While their most notable sound is a caw, they can coo or even rattle. Its sound makes identification even easier.

Many of these birds are adaptable to living in a temperate climate. Alternatively, some migrate a long distance to reach warmer temperatures. Spring and summer are the best seasons to see them.

Crow Nests

They have their young in the springtime. Both males and females construct a cup-shaped nest made out of sticks. They are usually found about 20 feet up in a tree.

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Crow Scientific Name

Its scientific name is Corvus brachyrhynchos. The Latin word Corvus refers to its genus while the word brachyrhynchos means short-billed. They belong to the Corvidae family and the Aves class.

There are over 40 species living throughout the world. Some of those include:

  • Sinaloan crow
  • Jamaican crow
  • Fan-tailed crow

Crow Size, Appearance & Behavior

Its solid black feathers make crow identification fairly simple. They also have two black eyes, a black beak, and dark legs.

Its 36-inch wingspan means this bird prefers to fly in open areas. They measure from 16 to 20 inches from the tip of the beak to their tail feathers. They weigh 11 to 21 ounces.

This bird’s black feathers make it highly visible. Fortunately, they have ways to protect themselves from predators.

These birds travel in a group sometimes called a Murder. Normally, a group contains around 10 birds, but there can be a lot more. They use different calls to alert others of predators in their habitat.

Another way they protect themselves is by having a sentry. A sentry is one crow in the group that watches for predators while the others eat. So, if danger is near, there’s always a bird on guard to send up a warning sound.

A crow on the ground eating the remains of a dead rat.
A crow on the ground eating the remains of a dead rat.

Image Harris

Crow vs Raven

Observe a crow and a raven side by side and they look very similar. It’s not unusual for the two to be mistaken for one another. Both birds have solid black feathers. In addition, they have black eyes as well as a black beak and legs. Plus, both of these birds have a distinctive call. But, despite their commonalities, there are some basic differences between them.

The most obvious difference is size. Ravens are larger than crows. Ravens are 22 to 27 inches long and weigh 24 to 57 ounces. A raven also has a larger wingspan at up to 46.5 inches. A raven’s beak is longer and more curved than a crow’s beak.

Looking at the behavior of these birds also helps with identification. Crows move around in groups of ten or more whereas ravens are less social traveling in pairs. A crow makes a caw sound whereas a raven makes a harsh gurgling sound. In terms of diet, ravens eat carrion and insects. They don’t have a taste for fruit.

Crow Migration Pattern and Timing

There are some species that migrate while others stay in the same place year-round. Migrating crows travel in large groups sometimes containing dozens of birds. They start to move out of a cold weather climate in the fall and return in the spring.

Not only do some of these birds migrate to escape the cold weather, but they also leave in order to breed in a place with a larger food supply available.

Crow Diet

They have an omnivorous diet. These birds can find food in almost any environment.

What do crows eat?

They eat insects, seeds, fruit, fish, and carrion. They also eat leftover human food from trash cans.

Crow Predators, Threats and Conservation Status

What eats crows?

They have a few predators including hawks, owls, eagles, and coyotes. Many of its feathered predators are larger and faster than the crow. Also, these birds of prey steal eggs.

Crows are known to eat animals that have been killed on the road. This puts them at risk of being attacked by coyotes.
Humans are also considered predators of these birds. They’re sometimes poisoned by farmers who think the birds are stealing seeds.

Another threat to these birds is the West Nile virus. The disease is spread by infected mosquitoes and some birds die within a week of getting it.

Despite these threats, this bird’s population is increasing. It’s displayed as Least Concern by the IUCN Red List of Threatened Species.

Crow Reproduction, Babies and Lifespan

These birds lay their eggs in the spring. A female lays three to seven eggs. During the 18-day incubation period, the male brings food to the female. The baby birds can start to fly at four to five weeks old. At two months old, the baby birds or chicks, leave the nest.

The lifespan of this bird is six to ten years, but some have lived much longer.

Crow Population

Their population is listed at 27 million. The IUCN reports this bird’s population as increasing and has categorized them as Least Concern.

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Crow FAQs (Frequently Asked Questions) 

Do crows migrate?

Some species migrate a long distance to warmer climates while others stay in the same habitat throughout the year.

How many eggs does a crow lay?

It lays three to seven eggs.

How fast does a crow fly?

It can fly 60mph.

What is this bird’s wingspan?

Its wingspan is 36 inches.

When do crows leave the nest?

Baby crows or chicks, leave the nest at two months old. But a baby may find a place to live nearby.

What does this bird eat?

These birds are omnivores eating carrion, insects, grain, fruit, and sometimes leftover human food.

What’s special about a crow?

They have the ability to put together cause and effect.

Why do crows caw three times?

The sound of three caws usually means the bird is alerting others of danger nearby.

Do crows protect?

Yes. When a group is eating, one crow serves as a guard or sentry for the others.

What do crows talk about?

One of the most interesting facts about this bird is it seems to have a sound to communicate almost everything. They may caw to each other when there’s a predator nearby, when the group is ready to fly or when they are trying to find mates.

Where do crows sleep?

They sleep in the top branches of trees. This is called a roost and can contain dozens of birds or even a hundred thousand!

How smart are crows?

Very smart! A group of crows in Japan was observed dropping nuts from telephone lines above a busy street. When a car runs over the nutshell and cracks it, a bird flies down to retrieve the delicious nut!

Is this bird a good pet?

No. These birds typically fly 40 miles each day around their habitat. They wouldn’t be happy as a pet.

What does it mean when black crows are around your house?

According to myth, this is a sign of bad luck. But, in reality, when you see crows flying around your house it’s likely to mean they’ve have spotted a group of tall trees to roost in. Or they’ve found a large food source in the area.

  1. Only Zoology, Available here:
  2. Cornell, Available here:
  3. Nature Mapping Program, Available here:
  4. Wikipedia, Available here:
  5. Corvid Research, Available here:
  6. Bird Fact, Available here:
  7. The Humane Society of the United States, Available here:
  8. Petkeen, Available here:

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