Traditional folk ballad

“ A bird appeared and sat on the opposite side of the river.
It did not sing like a bird, nor like a swallow,
But it sang and spoke in a human voice:
"Unless you sacrifice a human, the bridge will never stand. ”

“ When she called: "Pull me up, dear, pull the chain,
I've looked everywhere but can't find anything!"
One comes with the spade and one with the mortar,
And the chief mason himself goes and throws a big stone. ”