Anyone who often visits the place where a duck is raising her ducklings, or a pair of geese their goslings, or swans their cygnets, gets used to expecting that not all the chicks are going to make it.
This Canada goose family on the lake at West Park had the opposite. Five fluffy, recently-hatched goslings when I first noticed them were five well-grown chicks at the time of my last visit. But the full group being led by the parents had a sixth gosling, half the size of the others.