If you want to watch and know something about birds, you must find a good place near the bird nest（巢）.
Birds sit on eggs and take care of their babies from April to June. Because the baby birds are too young to leave the nest, parents often go to look for food and come back in several minutes. So it is good to watch birds. When we watch birds, we’d better hide ourselves in a close place to the nest, and it’s better to use binoculars .
But how to make a bird nest? A good bird nest must be very fine, strong, thick and comfortable. If you want to make one, please follow these:
a) Each nest must have six boards (木板). Don’t make the boards too slippery (滑).
b) Dig a small hole in the front of the nest as a “door”. The “door” is big enough so birds can fly in or out easily.
c) Make sure the rainwater can’t go into the nest.
d) One piece of the board should be easy to open.
e) Don’t forget to color the nest.
The most important thing in watching birds is to         .

A．look for a place near the bird nest

B．climb up to the trees

C．catch a bird

D．kill a bird

We have to hide ourselves to    ___  , when we’re watching birds.

A．take better care of them

B．use the binoculars

C．make them do everything as usual

D．kill them at last

We should leave a hole in the front of the nest so that         easily.

A．we can clean the nest

B．birds can fly in or out

C．we can hang（挂）

D．we can make it