Daily Mitzvah (Rambam)

The 148th mitzvah is that we are commanded regarding shiluach hakan ("sending away the nest").1

The source of this commandment is G‑d's statement,2 "You must first chase away the mother, and only then may you take the young."

The details of this commandment are fully explained in the last chapter of Chullin.

Footnotes

1.

Rather than taking both the mother bird and the chicks (or eggs), we are commanded to chase away the mother and only thereafter take the young.

2.

Deut. 22:7.