The stories of "Jesus (Peace be upon him) speaking from his mother's cradle" and "Jesus (Peace be upon him) and the birds, blowing birds into it and become real birds" are mentioned in the Quran.
Surprisingly, these stories are neither found in the New Testament nor found in the canonical Gospel of Mathew, Mark, Luke and John.
However, in 1886 a dead body of a monk was discovered in the desert of Egypt, he was from the fourth century AD. In the coffins of the monks there were multiple scrolls and these scrolls contained Gospels that are beyond the four canonical Gospels.
One of these Gospels was the Gospel of Thomas and in the Gospel of Thomas we have both of these stories. The story of Jesus (Peace be upon him) speaking as a baby and the story of birds becoming real birds.
It's amazing that for 15 centuries, these stories were not known to any Christian community.
God is Great