Well, we heard the pilgrims singing quite a lot, but always the same song. I thought they sounded rather tired and bored - maybe they would have liked to sing something else now and then for a change.
When they reached the turtles' home we heard the presenter talking in hushed whispers, so as not to scare the doves away. Then we heard turtle doves cooing, followed by the pilgrims singing and the doves cooing at the same time - so they hadn't been scared away after all.
(Unless, of course, the singers and the doves were recorded separately and then put together later in the studio ... but, maybe I am being too cynical.)