متنی که در ادامه ملاحظه می کنید، درباره پرندگان و طبیعت آن ها و نیز طرز زندگی، به طور خلاصه و مفید آورده شده است...

Birds in cold weather

In cold weather, birds puff out their feathers. It makes them look fat. What they are really doing is trapping warm air next to their skins. This

helps them to keep warm. Some birds also tuck their beaks under their wings when they go to sleep. This warms the air they breath. It may 

help them to go to sleep as well, because they keep on breathing the same air. This make them feel drowsy. finish

glossary

باد کردن _ باد را در جایی قرار دادن _ puff out : to cause some thing to become larger by filling it with air

نگهداری کردن _ اجازه ی فرار ندادن_  trap : to keep some thing in place from which it cannot escape or move

مخفی کردن _ چیزی را در جایی مخفی ، پنهان کردن _ tuck : to put some thing in a hidden place

منقار پرندگان _ beak : the hard part of a birds mouth

خواب آلود _ کسل کننده_  drowsy : sleepy

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