Snoopy started befriending birds in the early 1960s. Although not specified, one of these birds was most likely Woodstock's mother. The first time that Woodstock's mother makes a definate appearance is in the strip from March 3, 1966, where she builds a nest on Snoopy's stomach, and lays two eggs there, much to Snoopy's dismay. The mother then flies away, and is never seen again, leaving Snoopy to raise the two baby birds (one of the baby birds becomes Woodstock, and the other one's fate is unknown).