Estrildidae

These are small birds.

They like to eat seeds. They have short, thick bills.

These birds live in warm lands. They build big, round nests.

They lay white eggs in their nests. Most birds in this group look the same. But they can have many bright colors. They like to live in big groups.

Estrildidae is a family of small birds.

Many people call them finches. They include birds like munias and waxbills. These birds eat seeds. They have short and thick bills.

Most live in warm, tropical places. Some live in cooler areas like New Guinea.

These birds like to live in large groups. They build big, domed nests. They lay five to ten white eggs.

These birds come in many colors. Some are very small. The Shelley's oliveback is the smallest.

The Java sparrow is the largest. Scientists say there are 138 species in this family. They belong to 39 different groups called genera. A man named Charles Lucien Bonaparte named them in 1850. Studies show these birds are related to indigobirds. This link happened millions of years ago.

The Estrildidae are a large family of small birds.

People often call them estrildid finches. They include many well-known birds like munias and waxbills.

These birds are mostly seed eaters. They have short, thick, and pointed bills to help them eat.

Most of these birds live in warm, tropical areas. They are very social and often live in large groups called colonies.

These birds have many interesting ways of living.

Most species build large nests shaped like domes. They usually lay between five and ten white eggs in these nests. Some species even build nests just for resting or roosting.

While most love the heat, some have adapted to cooler spots. For example, the red-browed finch lives in southern Australia. The mountain firetail lives in the highlands of New Guinea.

Scientists have studied these birds for a long time.

A French naturalist named Charles Lucien Bonaparte first introduced the family in 1850. He originally called them "Estreldinae."

Today, the AviList records show there are 138 different species. These species are divided into 39 different groups called genera. This helps scientists keep track of how they are all related.

There is a huge variety in the size of these birds.

The Shelley's oliveback is the smallest member of the family. On the other end, the Java sparrow is the largest.

The black-rumped waxbill is also known as the lightest species.

Even though they are different sizes, they share many habits. They all have very different colors and patterns on their feathers.

We can learn a lot about history by looking at bird DNA.

Studies show that estrildid finches are related to indigobirds and whydahs. These two groups split apart about 15.5 million years ago.

A study by Urban Olsson and Per Alström in 2020 found six major groups. These groups grew into different branches between 4.5 and 8.9 million years ago. This shows how life changes slowly over very long periods of time.

Estrildidae is a diverse family of small, seed-eating birds. These birds are known as estrildid finches. They belong to the passerine group, which means they are perching birds. They are found primarily in the Old World tropics and Australasia.

This family includes many birds with common names like munias, mannikins, firefinches, parrotfinches, and waxbills. They play an important role in their ecosystems as social seed eaters.

Most estrildids share similar physical structures and behaviors. They possess short, thick, but pointed bills. These specialized bills are perfectly shaped for cracking and eating seeds.

While their body shapes are similar, their plumage varies greatly. They display a wide range of colors and feather patterns. These birds are often gregarious, meaning they live in social groups. Many species are colonial, living together in large numbers.

Reproduction and nesting are central to the life of an estrildid finch. Most species build large, domed nests to protect their young. They typically lay between five and ten white eggs.

Some species also construct roost nests used for resting. Interestingly, some members of this family are involved in brood parasitism. Firefinches can act as hosts for indigobirds. Similarly, pytilias can host whydahs. In these cases, the parasitic birds lay eggs in the finches' nests.

Climate sensitivity determines where these birds can survive. Most estrildids require warm, tropical habitats. They are generally sensitive to cold temperatures. However, some species have adapted to cooler environments. The eastern alpine mannikin and the mountain firetail live in cooler areas. The red-browed finch also survives in cooler climates. The genus Stagonopleura is another group that has adapted to cooler highland regions.

There is a significant range in size within the family. The Shelley's oliveback is the smallest species. It weighs only 3 grams.

The black-rumped waxbill is recognized as the lightest species. On the other end of the scale, the Java sparrow is the largest. It reaches a length of 14 centimeters and a weight of 36 grams.

These measurements show how much variety exists within a single bird family.

Taxonomy, or the science of naming and classifying life, has evolved for this family. The French naturalist Charles Lucien Bonaparte introduced the family in 1850. He originally used the name "Estreldinae," which is a spelling variant.

According to the AviList database, the family contains 138 species. These species are organized into 39 different genera. Scientists use these classifications to understand the relationships between different bird groups.

Modern science uses molecular phylogenetic studies to trace bird history. These studies look at DNA to see how species are related. Estrildidae is the sister family to Viduidae. Viduidae includes the indigobirds and whydahs. The two families diverged approximately 15.5 million years ago.

The most recent common ancestor of the estrildids lived about 10.9 million years ago.

A 2020 genetic study by Urban Olsson and Per Alström provided new details. They identified six major clades, which are large groups of related organisms. These clades radiated between 4.5 and 8.9 million years ago.

The authors suggested that each clade should be treated as a subfamily. This is different from earlier proposals that divided the family into only three subfamilies. This research helps scientists map the complex history of bird evolution.