In “The Blackout” episode Bernard slurs out a song from “the old country” while talking to his friend’s son. The outtakes show Dylan improvised it and the song had several versions. (bonus: Dylan’s cutest giggle at the end)

‘I live alone in a tree,
I live alone in a tree,
I live alone in a tree,
and nobody loves me.’

‘Cows in the morning,
Cows in the morning, 1 2 3
Up and at them,
Up and at them with a pick.’

‘I live by the river, with my mother,
In a house.
She washes, I cook,
And we never go out.’

'I’m a simple cow, living a simple life,
But sometimes I feel exploi-ted.
Ireland will never be free until,
I can marry my brother.’

'Oh, I love you Eileen Biogh,
I love you Eileen Biogh,
I love your feet and your eyes and your face.
I love your knees and your house and your… place,
I love your cows and your mother and your teeth.
I love your cupboards and your loft and your swimming pool,
I love you, I love you, I love you, I love you,
I love you, I love you, I love you, I love you,
Eileen Biogh,
But leave us alone now for the minute.’

source