Class-3 Science, Chapter-2 Animals:Birds


Chapter 2
Topic:  Birds - Characteristics of Birds

Section - A
Identify the following birds.


Q. Write any two features that are common in birds.
Ans- Following are the two features that are common in birds:
1)   Birds have hollow and light bones.
2)   Hands are modified into wings to help them fly.
Match the following Birds to the food they eat. Name their beak types.

Ans-
Give two examples of each.
Birds with webbed feet.
1)   Duck
2)   Swan
Birds with claw like feet.
1)   Hawk
2)   Owl

Section B

Q. Why is a bird's body shaped like a boat?
Ans- A bird’s body is shaped like a boat (streamlined shape) to help it fly in the air.
Q. How do the hollow bones help the bird?
Ans- Hollow bones make the body of bird light and it is good for flying.

Q. Write one point of difference between:

Beak of a hummingbird and that of an eagle.
Beak of hummingbird
Beak of an eagle
Beak of humming bird is long and needle-like.
Beak of an eagle is sharp and hook-shaped.
Humming bird uses beak to suck the nectar.
Eagle uses its beak to tear flesh.


 Down feather and flight feather.
Down feather
Flight feather
Down feather are soft and fluffy.
Flight feather are long feathers found on wings and tails.
Down feathers help to keep the body warm.
Flight feathers help the bird to fly.

Find out what these birds are doing in the pictures given below:

You have researched about a specific Bird. Now complete the following table based on your research.

Name of the bird
 Sparrow
Where does it live?
 Open agricultural and rural areas
How many eggs does it lay?
4-5
What does it generally eat?
Seeds, grains, flowers and insects
Can this bird fly?
 Yes
Special adaptations of this Bird?
 Thick cone-shaped beak which helps it to crack seeds.

Now paste a picture of this bird in the space provided below.
Section C

Let's make a pizza for birds.  What kind of toppings would these birds like on their pizza? Write or draw the same on their pizza.

Eagle
Fish, rat, squirrel, rabbit, turtle, egrets
Woodpecker
Acorns, nuts, fruit, sap, berries, pine seed

Pigeon
Corn, peas, wheat, sorghum, insects, snails, earthworms

Section D

Label the different parts of the given bird.

Q. Birds look beautiful in coloured feathers. Is hunting animals for shear pleasure, correct? Comment.
Ans- Hunting animals for shear pleasure is not correct as they have life and they are beautiful creations of nature.

Give reasons for the following:

Q. Water birds have webbed toes.
Ans- The webbed feet help water birds to paddle through the water more efficiently
Webbed feet are useful on land as well as on water because they allow birds to walk more easily on mud.

Q. A Woodpecker has a sharp pointed beak.
Ans- A woodpecker has a sharp pointed beak to help it pull out insects by making holes in tree trunks.
Identify the bird with the given type of feet. Tick the correct answer.
Running type
 Ostrich (✓)
 Parrot
 Sparrow

Perching type
Talons
Blue Jay (✓)
Chicken

Section- E
(Revision Questions)
Q. Write any three characteristics of birds.
Ans- Following are the tree characteristics of birds:
1-   The body of a bird is covered with feathers.
2-   Hands of birds are made into wings. This helps them to fly.
3-   Tails of birds are used for changing direction during flight.

Q. Give two examples of wading birds.
Ans- Two examples of wading birds are:
1-   Egret
2-   Flamingo

(Note- Water birds, especially one with long legs, that habitually wade are called a wading birds.)

Q.  Give two examples of perching birds.
Ans- Following are two examples of perching birds:
1-   Crow
2-   Sparrow

Q. Give two examples of carnivorous birds.
Ans- Following are two examples of carnivorous birds:
1-   Eagle
2-   Hawk

Q. Who is called the birdman of India?
Ans- Dr. Salim Ali is called the birdman of India.


State on point of difference between:
(a) Cracking beak and Sipping Beak
(b) Straining beak and Drilling Beak
Ans-
Cracking Beak
Sipping Beak
Crackin beak is short and curved. It is used to crack open nuts and seeds. For example- Parrot, Sparrow and Pigeon.
Sipping beak is long and needle-like. It is used to probe into flowers to suck the necter. For example – Humming bird


Straining Beak
Drilling Beak
Straining beak is flat with holes at the side for the water to flow out. For eample- Duck and Swan
Drilling beak is sharp and pointed to make hole in the tree trunks to pull out insects. For eample- Wood pecker and Hornbill
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