The bard, as part of the rogue group, was one of the standard character classes available in the second edition Player's Handbook; in this edition, the bard was regularized.
Also, not all babies are born with blue eyes. Babies of African, Asian, and Hispanic descent are more likely to be born with brown eyes. This is because darker-skinned individuals tend to have more melanin in their eyes than Caucasians. Even so, a baby's eye color may deepen over time.
When a child is conceived the parent will pass on any one of these genes. this can result in 2 parents with brown eyes having children with green or blue eyes (BG +Bb = bb). depending of which gene was passed on, but if one parent passes the gene for green eyes and the other passes on the gene for blue eyes, then the child will always end up with green eyes as green is dominant over blue.(BG + Bb = Gb or GB)