Have you often wondered about how long is a bird pregnant before laying eggs? If you are such a person who is a fan of birds you surely must have developed such curiosity. It is quite a fun building their nest and takes care of their babies; they also save their babies from several predators. So, let us discuss their amazing life in a detailed manner.

In this article, you will learn about the pregnancy period of the birds together with their nesting process.


How long is a Bird Pregnant before Laying Eggs – The Complete Process

We all know it is very fun to watch the birds fly and hid in bushes where they plan to build their nest. Many birds often lay eggs from the beginning of the spring until the middle of the summer. However, their time also depends on their species and the climate that is prevailing in the particular region.

Pairing and Nest Buiding :   

The easiest way to recognize that a bird is about to lay eggs is by observing their mating and nesting behavior. Many birds mate after the winters when there is plenty of food available, and plenty of sunlight is available. The male birds start singing and try to form their territory where they oppose the other males to enter. Females start searching for the fittest male to copulate. The fitness of males is often determined by their singing quality, fur quality, and health.

Soon after these birds form a pair, they start to build their nest. In some species both male and a female bird are equally responsible for building up the nest while in some it’s only the work of the female bird. The main adventure is to watch the birds carrying mud, twigs, strings, or any such thing that can build their nest comfortable. After the nest is complete its time for them to mate. The female requires their eggs to be fertilized by the male before they lay their eggs in the nest. Some of the essential factors of the nest are it should be in a safe place and food availability

The process of laying eggs is quite an energy-intensive process due to this reason, there is a gap of several days between mating and laying of the eggs. Birds usually mate during the morning period.


Egg Development Stage :

Birds have two ovaries. As the ovum ruptures from the follicle, they pass through a funnel-like end called oviduct after which the egg is formed.

Fertilization of Egg :

The eggs of the birds are fertilized internally before they are hatched. Externally such eggs look just as an unfertilized egg; the only difference is the female incubates it for a definite period.

Incubation :

During the incubation parents, parents use to sit on the eggs to keep at the required temperature to hatch them perfectly. It is also important for them to continue to feed themselves and stay healthy and also strong to save their eggs from predators.

Safety From Predators :

Nest has to save from predators such as crows, hawks, eagles, possum, snakes, and rats. Such predators can eat not only their eggs but also the female bird. The location of the nest is an essential factor for safety from such predators.

After Hatching :

As you all know, all the essential details of how long is a bird pregnant before laying eggs. Finally, the day arrives when the babies come out from their eggshell, and both the parents become overwhelmed. They continuously feed them turn by turn and makes them stronger. Once they develop all the necessary fur and wings, they start to fly, and thus, all the efforts of their parents are paid.

Some Interesting Facts about Bird’s Nest     

  • A bird nest is just a small miracle; they are woven with such precision that they remain sturdy, warm, and comfortable even in severe winters.
  • Many people think that the nests of the birds are their permanent home, but it is not true. Nests are meant only for the purpose of holding and hatching of the eggs. As soon as the babies grow bigger, they leave their nest forever.
  • Many other creatures such as alligators and wasp also build their nest but not with such precision as birds.
  • The skills to build a nest are not easy; many young birds improve gradually by practicing year by year.
  • The nest has many layers, and each layer has some specific purpose. The coarse twigs are meant to serve as a stable base while the softer and more delicate twigs or weeds are laced to create a cup-like structure. Dry leaves and soft fine grasses are meant for the inner region. Many birds often sew their nest in hanging style, and they are so strong that it rarely falls down, no matter how strong are the weather conditions.
  • Ducks lay a higher number of eggs than the birds. A duck can even lay 15 eggs in their one nesting cycle.
  • Not every bird builds their own nests; some of the species of the birds such as cowbirds lay their eggs in some other bird’s nest. Owl lays their eggs in the cavities of the trees.
  • Pigeons are the only species of birds that can lay eggs for up to eight times over a year.
  • Killdeer are the only species of birds that are hatched with their fur, and as soon as their fur becomes dry, they leave the nest forever.
  • The average time of all the birds to leave their nest is around 98 days.
  • Nest watch is a global program that welcomes all the amateur bird watchers to observe and learn about nests. Last year there were around 985 volunteers for the same.
  • Some birds, such as waved albatross, do not like to take the comfortable advantages of the nest. They lay their eggs on the ground, and both the parents take care of the eggs until they are hatched.
  • Bald eagles built a stronger nest and used them for years, although they modify them in between. The weight of their nests can reach up to 3 tons.
  • Some of the birds, such as burrowing owls, use abandoned homes or nest of other animals or birds. Gyrfalcons use the same nests for generations.
  • The blue-gray gnatcatcher birds make their nests from lichens and spider web.
  • Red-cockaded woodpecker nest is in wooden cavities, and it can take up to years to drill the hole in the wood. But as they live in groups, their work becomes more comfortable.

If You See a Bird’s Nest Watch from a Distance        

Many species of birds nest are often protected by law. Disturbing and tempering of such active nests are against the law. An active nest is a nest in which eggs are kept for the hatching process. Only in case of some emergencies, such nest can be moved to a safe place. Do you know the Golden and Bald eagle nests are also protected even if they are abandoned? Maintaining a safe distance from such active nests will ensure that the birds are not getting disturbed during such a sensitive process. In case they get threatened, they can even leave their nest forever that may halt the growth of such species.

In case you have pet birds in your home, make sure you do not move their cage or try to touch their eggs as they warm their eggs in a particular way, and rolling the eggs unnecessary may affect their hatching procedure. Many birds have poor sensitivity to smell so they cannot smell your scent in their nest but why to take the risk of disturbing their natural process.


How long does it take for a bird to lay an egg?

Ans: In the first stage, the female birds pass through the embryonic development stage that takes 24 hours to complete the formation of an egg. So typically, a bird takes 24 hours to produce a single egg.

How long is a bird pregnant?

Ans: Such a pregnancy period lies from species to species but roughly small birds can be pregnant for two weeks, while larger species of birds can take about three weeks.

How long are robins pregnant before laying eggs?

Ans: Once their clutch is completed, the incubation period of robin birds can be of 13 days.

Are birds pregnant with eggs?

Ans: No, birds do not get pregnant as they have to remain lightly weighted to fly. They just form a soft egg quickly and lay them into their nest.

Will a bird return to a disturbed nest?

Ans: It depends on the species of the birds; some birds leave their disturbed nest forever while others do not leave and repairs them accordingly.

Where do birds lay their eggs?

Ans: They usually make a bowl shape structure with soft twigs and other readily available items found nearby to lay their eggs.

The Final Words

So, I hope that now you are familiar with how long is a bird pregnant before laying eggs. You are also familiar with several factors that the birds look for to make this particular stage successful.

In case you are keeping pet bids in your house, make sure that you provide them with all the necessary items they might need for safely completing their nesting period. They are indeed one of the most fabulous creations of God.