This quest has a note stating:

On completion of requirements, complete quest:s

Northern Strangethorn 4.x PRK - E - Just hatched! FLAG 28855

Pretty sure this line is supposed to be hidden? It'sa kinda confusing for the general user, but I'm guessing it's telling the game to flag a Horde version of the quest, or something else? It does not flag up sating it's a pre-quest anyway, but this is usually where these are listed.