YOU SAID:

the chickens are very tired and will go to sleep

INTO JAPANESE

ニワトリはとても疲れていて、眠りにつくでしょう

BACK INTO ENGLISH

The chicken is very tired and will go to sleep

INTO JAPANESE

ニワトリはとても疲れているので寝ます

BACK INTO ENGLISH

The chicken is so tired that it goes to sleep

INTO JAPANESE

ニワトリは疲れて寝てしまう

BACK INTO ENGLISH

the chicken gets tired and goes to sleep

INTO JAPANESE

ニワトリは疲れて眠りにつく

BACK INTO ENGLISH

the chicken gets tired and goes to sleep