Samurai zlash!

Elizabeth, Elspeth, Betsy, and Bess,
They all went together to seek a bird's nest.
They found a bird's nest with five eggs in,
They all took one, and left four in.

from Mother Goose

Did leave one egg in the nest?
In fact, they are same person.
Elspeth is a nickname of Elizabeth.
Betsy is, too.
Elspeth is, too.
Elizabeth took one, and left four in.