Therefore, when the junior chick (B-chick) hatches, there is a significant disparity in size and strength between it and its older sibling.

The chick hatches with grey down.

The chick hatches about one month after laying and the nestling phase is two month, a considerable length of time for a landbird.

Incubation begins after the second egg is laid and both parents take turns until the chick hatches on the 16th or 17th day.

When the chick hatches, the mother feeds it with food she had stored in her crop, but this won't last.

Once the chick hatches, the parents raise their chicks for 86 to 109 days.

The naked, altricial chick hatches after 11-13 days.

After the first chick hatches, the second egg is ignored and normally fails to hatch unless the first egg perishes.

When the chick hatches, the parents go out to sea and feed during the day, and return only at night.

Just like when a chick hatches, what it imprints on is what it's going to fall in love with.