Sigrid Undset said this quote
“ Do you know who 'twas that first knew our Lord had caused Himself to be born? 'Twas the cock; he saw the star, and so he said–all the beasts could talk Latin in those days; he cried: 'Christus natus est!' He crowed these words so like a cock that Kristin fell to laughing heartily. And it did her good to laugh, for all the strange things Brother Edvin had just been saying had laid a burden of awe on her heart.The monk laughed himself: Ay, and when the ox heard that, he began to low: 'Ubi, ubi, ubi.' But the goat bleated, and said: 'Betlem, Betlem, Betlem.' And the sheep so longed to see Our Lady and her Son that she baa-ed out at once: 'Eamus, eamus!' And the new-born calf that lay in the straw, raised itself and stood upon its feet. 'Volo, volo, volo!' it said. ”