Pregnant Hummingbirds: Look, Size, and Behavior




Preganant Hummingbirds

This article discusses everything about pregnant hummingbirds, covering their appearance, size, behavior, nesting, and feeding habits. Here’s the summary. 

Look, Size, and Behavior of Pregnant Hummingbirds


  • Pregnant hummingbirds may appear slightly plumper or rounder compared to non-pregnant individuals.
  • They might exhibit subtle changes in feather appearance, such as a slightly disheveled or fluffier appearance.


  • The size of a pregnant hummingbird remains relatively consistent with their non-pregnant counterparts.
  • Hummingbirds are already tiny birds, and their size doesn’t significantly change during pregnancy.

Unique Behaviors:

  • Pregnant hummingbirds are actively involved in nest-building and egg-laying activities.
  • They are often seen visiting flowers to feed and sustain their energy during this crucial period.
  • They display protective behaviors around their nests and may become more territorial.

While pregnant hummingbirds may not look much different in size or appearance, their behaviors during this special time are truly fascinating. In the upcoming sections of this article, we’ll explore the intriguing world of these tiny birds. 

We’ll learn about their nest-building and parenting habits, discover what they like to eat and why it’s crucial during pregnancy, and find out how we can help protect them in our own gardens. 

So, if you’re curious to uncover the secrets of pregnant hummingbirds and want to appreciate these amazing birds even more, keep reading as we take you on an exciting journey into the lives of these feathered tiny bird moms.

Hummingbird Reproduction Basics

Preganant Hummingbirds
A hummingbird is feeding its babies.

Hummingbirds are not just mesmerizing with their iridescent plumage and rapid wing beats but also fascinating when it comes to their reproduction. They have unique mating behaviors, nest building process, egg laying, and parenting process. 

Mating Rituals: 

Hummingbirds are small, yet their courtship rituals are grand. Male hummingbirds engage in breathtaking aerial displays to woo potential mates. 

These dazzling acrobatics involve rapid zigzags and high-speed dives to impress the females. Once a female is attracted by a suitor’s performance, they engage in a graceful mid-air dance before moving on to the next phase.


After successfully attracting a mate, the female takes on the responsibility of nest-building. 

Their nests are mini architectural wonders, often constructed with materials like spider silk, moss, and lichen, camouflaging them in the foliage. 

The female selects a safe, concealed spot to protect her precious offspring from predators.


Once the nest is ready, the female lays her eggs, usually two, which are about the size of small peas. 

She meticulously incubates them, keeping them warm with her body heat and occasionally leaving to forage for nectar and insects. 

It’s crucial to understand that the female hummingbird alone shoulders the burden of incubation and raising the chicks.

Parental care: 

The female hummingbird plays a pivotal role in this process, from constructing the nest to incubating the eggs. 

She keeps her future chicks warm and well-fed, often feeding them a diet rich in nectar and insects, ensuring they receive the essential nutrients for growth. 

As the chicks mature, both parents may take turns feeding them until they are ready to fledge. 

Understanding the reproductive behavior of hummingbirds is not just about appreciating the wonders of nature but also plays a crucial role in their conservation. 

By knowing how these tiny birds reproduce, we can take steps to protect their habitats, ensure their survival, and continue to be enchanted by their vibrant presence in our gardens. 

Identifying a Pregnant Hummingbird

Hummingbirds are not just incredible fliers; they are fascinating creatures when it comes to pregnancy. To spot a pregnant hummingbird in your garden, you need to know what to look for in terms of their physical changes.

Weight gain

One noticeable sign of pregnancy in hummingbirds is weight gain. As they prepare to nurture their future chicks, female hummingbirds put on a bit of extra weight. 

This increased body mass is essential to provide energy for the demanding task of egg incubation and chick feeding.

Changes in Feather Appearance

Another clue to identify a pregnant hummingbird lies in their feathers. Pregnant females may display subtle changes in feather appearance. 

They tend to appear slightly plumper, which can be attributed to the developing eggs within their bodies. Keep an eye out for any differences in their overall shape and size.

Behavioral change

To identify a pregnant hummingbird in your garden, you can also observe their behavior. Pregnant females often become more territorial, vigorously defending their feeding and nesting areas. 

They may spend more time perched near their nests and less time in their usual frenzied feeding patterns.

Size and Development of Hummingbird Embryos

Hummingbirds have equally astonishing embryos tucked inside their delicate eggs during pregnancy. Understanding the size and development of these embryos provides a glimpse into the remarkable journey of life within these tiny eggs.

Size During Different Stages of Pregnancy: Hummingbird embryos start as minuscule specks, barely visible to the naked eye. As the days pass, they undergo remarkable growth. 

By the time the eggs are ready to hatch, the embryos have developed into tiny birds, ranging from 1 to 2 inches in size, depending on the hummingbird species. 

This significant size increase is a testament to the incredible transformation happening inside the eggs.

Development Inside the Eggs: The development of hummingbird embryos is a marvel. 

During their time in the eggs, these tiny creatures go through various stages, including the formation of vital organs, feather growth, and even the development of their signature long bills. 

It’s a meticulous process guided by nature’s precision, ensuring that when the chicks hatch, they are well-equipped to navigate the world outside.

Nesting and Nesting Behavior

When it comes to pregnant hummingbirds, their nesting habits are a remarkable part of their journey into parenthood. These tiny birds create cozy nests with incredible precision, showcasing their impressive nesting behavior.

Exploring Nesting Habits: Pregnant hummingbirds select their nesting spots with great care, often opting for hidden and sheltered locations (well concealed spots). 

Their nests are small and intricately crafted, resembling mini cups. They have a soft, cushioned interior, providing a safe and snug haven for their soon-to-arrive chicks.

Often well camouflage with the substance.

Materials Used: To build these exquisite nests, hummingbirds rely on a variety of materials. They collect spider silk, plant fibers, and even bits of leaves and bark, creating a strong and flexible structure. 

These nests are so well-made that they can expand as the chicks grow, accommodating their increasing size.

Spotting a Hummingbird Nest: Locating a hummingbird nest can be a rewarding experience. Keep an eye on your garden or nearby trees and shrubs. 

Look for small, cup-shaped nests, often camouflaged by leaves or branches. Patience is key, as hummingbirds are cautious and may not appreciate close observers. 

Respect their space to ensure a successful nesting season, never ever directly approach a nest.

Feeding Habits of Pregnant Hummingbirds

Pregnancy is a crucial time for hummingbirds, and their feeding habits play a pivotal role in nurturing both themselves and their unborn chicks. 

Understanding what these tiny avian mothers need to stay healthy during this time is essential.

Importance of Nutrition During Pregnancy: Just like any expectant mother, pregnant hummingbirds need to fuel their bodies for the demanding task ahead. 

They require ample energy not only to maintain their own well-being but also to support the growth of their developing embryos.

Dietary Needs and Preferences: The primary food source for hummingbirds is nectar from flowers, which provides them with the sugary energy they require. 

During pregnancy, they also supplement their diet with protein-rich insects and spiders. This protein boost is vital for the proper development of their chicks. 

Ensuring a variety of nectar-rich flowers and a clean source of water can help attract and sustain pregnant hummingbirds in your garden.

Tips for Attracting Pregnant Hummingbirds: To welcome these delightful creatures into your garden, plant a variety of nectar-producing flowers in vibrant colors like red, orange, and pink. 

Keep your feeders clean and filled with a sugar solution (one part sugar to four parts water). 

Providing a diverse and nutritious menu ensures that pregnant hummingbirds find your garden a hospitable place to nourish themselves and rear their young.

Protecting Pregnant Hummingbirds

Pregnant hummingbirds, with their delicate charm, deserve our attention and protection. These remarkable creatures are not just a delight to observe but also an essential part of our ecosystem.

Importance of Conservation Efforts: Hummingbirds play a crucial role in pollinating flowers, helping them reproduce. They also control insect populations by feasting on them. 

To safeguard these tiny wonders, conservation efforts are vital. Protecting their habitats, avoiding pesticide use, and supporting initiatives that preserve their natural environments are crucial steps.

Creating a Safe Environment: As homeowners, we can contribute by providing a safe haven in our own gardens. 

Planting nectar-rich flowers, maintaining clean feeders, and avoiding toxic chemicals ensure that pregnant hummingbirds have access to food and safe resting spots.

Legal Protections: In some regions, hummingbirds enjoy legal protection. It’s important to familiarize yourself with local laws and regulations regarding these birds. 

In many cases, it is illegal to disturb their nests, capture, or harm them in any way.

Observing Pregnant Hummingbirds

  • Enjoy the enchanting experience of watching pregnant hummingbirds without causing disturbance (keep your distance, give them some privacy).
  • Find a quiet spot in your garden or a hummingbird-friendly area.
  • Maintain a safe distance using binoculars or a zoom lens to avoid startling them.
  • Observe their rapid wing beats and acrobatic flight as they sip nectar from flowers.
  • Keep an eye on feeders where they may visit or witness their territorial behaviors.
  • Discover heartwarming stories of encounters with these tiny marvels, from finding nests in unexpected places to witnessing baby hummingbirds taking their first flight.
  • Cherish these moments as a delightful journey into the lives of these incredible birds and the wonders of nature.


To sum it up, we’ve learned a lot about pregnant hummingbirds – how they look, their size, and their behavior. These tiny birds are important for our environment. 

So, let’s remember to appreciate and protect them. By understanding their world and watching them carefully, we can help these amazing birds thrive. It’s all about keeping the magic of nature alive.