The translation into English is this (well, how I learned it anyway):
Little birds, little birds,
Go to sleep, go to sleep,
Little birds, little birds,
Go to sleep, go to sleep,

Chorus
Go to sleep, go to sleep,
Beside the wall outside, beside the wall outside,
Go to sleep, go to sleep,
Beside the wall outside, beside the wall outside


Blackbird and raven,
Go to sleep, go to sleep,
*Blackbird and crow,
Go to sleep, go to sleep,

Chorus

Robin and lark,
Go to sleep, go to sleep,
Wren and thrush,
Go to sleep go to sleep

*The word cheir-seach actually means female blackbird, which is why it isn't the same as lon-dubh (blackbird). It is still translated into English as blackbird, though.