CBSE Notes Class 4 EVS Chapter 16 - A Busy Month - 2025-26

Summary of A Busy Month

• This chapter helps us to understand the important month in animal and bird life.

• Birds go through a month when the female birds were going to lay eggs and those preparations should be done.

• Preparations like making nests for the safety of the eggs.

• Different types of birds make different types of nests and lay eggs in different places.

Dove  

• A Dove lays their eggs in their nests.

• Doves have small heads, pointed bills, rounded bodies, long wings, and tail feathers in common with most other birds.

• The nests are usually at heights.

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Sparrow

• They have a chirpy appearance and are grey and brown. They can fly at a top speed of 38.5 kilometres per hour and even 50 kilometres per hour.

• Sparrows usually lay eggs in the early spring and summer when they are nesting.

• Sparrows can lay anywhere from three to seven eggs, but the most common number is four to five.

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Indian Robin

• The Indian robin is a bird species. 

• It can be found throughout the Indian subcontinent, including Bangladesh, Bhutan, India, Nepal, Pakistan, and Sri Lanka.

• It lays 2-3 creamy-white eggs on a pad of grass lined with feathers or hair in a hole in a wall, tree stump, or bank.

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Crow

• Except of for southern South America, crows are glossy black birds that can be found in most parts of the world.

• During its breeding season, a crow lays five eggs on average, one each day.

• Crows' nests are usually hidden in the lap of a tree trunk or on a horizontal branch near the top third or quarter of the tree.

You're aware that the Koel sings beautifully. You may be surprised to learn that this bird does not build its own nest. It lays its eggs in the nest of a crow. They hatch alongside the crow's own eggs.

Barbet

• Barbets are thick-set birds with body lengths ranging from 3.5 to 13 in (9–33 cm). 

• Barbets have a stout, sharp-tipped bill, short, rounded wings, a short tail, a large head on a short neck, and a large, rounded head. 

• Around the base of their beak, these birds have a distinctive "barbet" of bristles.

• To build its nest, it carves out holes in trees. It is primarily a frugivore, but it has also been seen eating insects, particularly winged termites.

• Between September and December, one to five eggs are laid at daily intervals. Incubation lasts 13 to 17 days, starting with the second or third egg and is primarily carried out by the female.

• The young are born blind and naked. Both parents feed them insects.

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Tailor Bird

• Tailorbirds get their name from the way they build their nests. 

• To make a cradle in which the actual nest is built, the edges of a large leaf are pierced and sewn together with plant fibre or spider silk.

• Tailorbirds lay 2 to 5 eggs that are pastel blue with brown speckles. 

• Before the eggs hatch, the female will incubate them for about 12 days. 

• Both parents will be busy looking for food to feed and raise their brood of 2 to 5 chicks.

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Sunbird

• Sunbird nests are usually purse-shaped, enclosed, and suspended from thin branches with a lot of spiderwebs. 

• The spiderhunters' nests are distinct from those of the sunbirds and, in some cases, from each other.

• They range in length from 9 to 15 cm (31/2 to 6 inches) and feed primarily on nectar.

• The female can have up to four eggs at a time. 

• Sunbird females are the only ones who incubate the eggs, except spiderhunters.

• After 15 to 17 days, purple sunbird eggs hatch. Sunbird males assist in the rearing of the nestlings.

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Weaver

• Weaver, also known as weaverbird, any of several small Old World finchlike birds, or any of several related birds known for their nest-building techniques involving grass stems and other plant fibres.

• The female lays two to four white eggs, which she incubates for 14 to 17 days. Males may occasionally assist in the feeding of the chicks.

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Why do birds make nests before laying eggs?

• To protect their nests from predators, many bird species hide their nests.

• Some species may select inaccessible nesting sites or construct the nest in such a way as to deter predators. 

• Bird nests can also serve as a habitat for other inquiline species, which may or may not be harmful to the bird.

Bird Feet – Different Kinds for Different Needs

Birds have different kinds of feet as per their needs.

1. To swim in water         

2. To hold the branches of trees

3. To catch the prey (What it hunts)      

4. To climb the tree

5. To walk on the land

Bird Beaks – According to the Food

1. To tear and eat meat       

2. To make holes in wood and tree trunks     

3. To suck nectar from flowers 

4. To find insects and worms from mud

5. To break and crush seeds    

6. To cut and eat many kinds of food and shallow water

Practice Question

Q1. Fill in the blanks

• The baby in the robin's nest had its beak wide open because it was waiting for ............... to be given by its mother.

Ans: Food

• The ............... weaver bird makes beautifully woven nests.

Ans: Male

• The cat's teeth are ............... so that it can tear and cut meat easily.

Ans: Sharp

• Cows have large and flat teeth on the ............... of their mouth to ............... grass.

Ans: Side and chew

• A curved upper beak in a bird is useful for ............... seeds.

Ans: Breaking and crushing

• Most birds make their nest at the beginning of ............... season.

Ans: Summer

• Birds............... depend on the food they eat.

Ans: Beak

• ............... birds migrate for food, change of habitat or because of extreme climate.

Ans: Migratory

• Teeth of a ............... grow throughout its life.

Ans: Squirrel

• Enemies of birds wait for a chance to ............... their eggs.

Ans: Eat

Q2. Which creatures are enemies of birds?
Ans: Humans, cats, chipmunks, other birds, snakes, frogs, dogs, deer, coyotes, and a variety of other animals have been observed as the enemies of the birds.

Importance of CBSE Class 4 EVS Chapter 16 A Busy Month

This chapter is all about how the birds behave and what types of nests they make during the season. It was blazing summertime when the author of this journal watched different birds making nests, laying eggs, and rearing young ones.

All the birds he saw were common. They like to stay closer to our habitats as getting food becomes easier. They also find less threat from nature when they stay closer to the humans. On the other hand, the author also explains how we are a looming threat to them other than the animals.

He explains how the birds survive to make nests and give birth to young ones. A Busy Month Class 4 EVS also explains how they make different types of nests to survive. Get an easy explanation of the concepts of this chapter from the revision notes of Vedantu.

Related Study Materials for Class 4 EVS Chapter 16 A Busy Month

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Benefits of Class 4 EVS Chapter A Busy Month notes

• These notes are designed according to the CBSE Class 4 standards. You will find following it easier. Comprehend the information compiled by the writer from these notes to write answers accurately.

• Check how the author has explained bird feet and other features in this chapter. The description is simplified in the notes to follow.

• Complete preparing this chapter by resolving doubts on your own using these revision notes.

• Solve the worksheet provided with these notes to find out the different shapes of bird beak and escalate your comprehension skills.