Cause and Effect in "Come Again in the Spring"

Here are some examples of Cause and Effect in "Come Again in the Spring"

Old Hark kept feeding the birds.

So they never flew south in the Fall.

Old Hark had to stay and feed the birds.

So he asked death to come again in Spring.

Death was very impressed by Old Harks memory.

So we asked Old Hark to try to remember something again.