How Does a Bird Lay an Egg? All You Need to Know About Bird Nesting


Birds usually reproduce through the egg-laying process. Usually, eggs are laid, later sat on, or incubated for successful hatching. But are you asking yourself, How does a bird lay an egg? This blog post gives informative details about this question and more. So, keep reading for more information!      

A bird lays an egg after the ova has formed a hard shell that passes through the cloaca, which is later laid. This happens when the ova ovulates and comes to the magnum, awaiting fertilization. Here, fertilization only occurs when sperm from their males come into contact with the ova. However, eggs will form whether or not there is internal fertilization.

Afterward, the yolk develops, and if fertilization takes place, a thin amniotic fluid layer also develops. The egg is then passed through the isthmus, where it creates albumen. The egg further goes to the uterus, forming a hard shell. The egg is then ready to be laid, where it passes through the cloaca. You will notice your bird lying down when it is ready to lay its egg.

Birds need light exposure for at least six hours daily for ovulation to occur successfully. Note that the egg formation process occurs within 24 hours before it is laid, so birds only lay one egg in a day. Provide a soft place where birds can lay their eggs without breaking them. Offer diets rich in calcium and vitamins to laying birds, as it helps in strong egg formation.

What Does It Look Like When a Bird Is Laying Eggs?

When a bird is laying eggs, you will notice the following six signs:

1. Forms a Laying Nest

Birds will pluck their feathers to create a soft nest for laying eggs. They will also bring dry leaves and grass from different places for their nest. Birds always want to lay eggs in good shape with no cracks.

2. Gains Weight

Birds laying eggs usually gain weight due to the high fats and eggs in their bodies. Also, their increased appetite contributes to weight gain and the energy needed to lay eggs. Furthermore, their abdomen enlarges and is even more firm.

3. Increased Water Intake

Laying birds have increased water intake to replace the moisture they use in egg formation. In addition, they lose water while laying eggs; therefore, increased water intake will make their bodies stay hydrated and thus maintain a healthy state.

4. Protective

Since laying birds aspire to be parents, they tend to be very protective of their eggs. When you try to reach out to them in their nests, they vocalize and sometimes even peck your hand. This is a way of keeping intruders out of her eggs.

5. Spends More Time in the Nest

Rather than your birds spending time on their perches as usual, they usually stay at their nests for some time to lay eggs. Also, spending time in their nests helps protect their eggs and relax their bodies from engaging in too many activities.

6. Craves Feeds Rich in Calcium and Vitamins

When your birds are laying eggs, they will always seek feed rich in calcium and vitamins. They   choosy with the diets that you offer them. They will always prefer vegetables and fresh fruits. Also, feed them food designed for laying birds, as it contains all the essential nutrients they need to lay strong eggs and remain in good shape.

Do Birds Look Pregnant Before They Lay Eggs?

No, birds do not look pregnant before they lay eggs. They usually have their standard belly size. Nevertheless, you will notice your bird gaining weight, as it will be heavier than before.

Similarly, the cloaca becomes firmer than before. Sometimes, it may not be easy to notice if your bird wants to lay eggs unless you closely monitor its behavior.

Keep feeding your birds a balanced diet to avoid depriving them of essential nutrients and mineral salts.

Do Birds Lay Eggs After Mating?

No, mating does not determine egg-laying in birds. Instead, it only contributes to egg fertilization.

So can a bird lay eggs without mating?

Yes, birds can lay eggs without mating. Once their ovulation occurs, egg formation occurs even without fertilization. Birds will need to be fully exposed to light for proper ovulation. However, if fertilization does not happen, your birds will lay unfertilized eggs that cannot hatch even when incubated.

However, after mating, it may take a short time before your bird lays eggs. This is because birds usually become sexually active during their breeding season, mainly in the spring.

How Often Do Birds Lay Unfertilized Eggs?

Birds can lay unfertilized eggs daily, especially when they are in their breeding phase and have no sperm for fertilization.

Unfertilized eggs are always safe for consumption as they contain all the nutrients of fertilized eggs. However, unfertilized eggs are not suitable for incubation as the embryo will not be formed.

How Often Do Birds Lay Eggs?

Birds lay eggs in every breeding season, five to seven times a year in each clutch. Birds are usually productive during spring and when exposed to their male counterparts.

In addition, the type of feed you offer them determines the number of times your birds will lay eggs, as poor dieting will result in weak eggs and few laying eggs.

Do Bird Eggs Grow After Being Laid?

No, bird eggs do not grow after being laid. Instead, they decrease in size due to a loss of moisture.

However, if the fertilized eggs are incubated or laid, the embryo will start developing, which becomes a precocious nestling after hatching. Note that unfertilized eggs will not hatch even when incubated.

Do All Birds Lay Eggs?

All female birds lay eggs, as they contain the reproductive system for egg formation. Male birds are essential for mating to provide the required sperm for fertilization, which will lead to the embryo’s development when incubated. Birds lay eggs with hard shells with pores to keep the eggs alive.

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