Thematic Bible: Moses' law protected the mother from being taken with the young

If a bird's nest chance to be before thee in the way, in any tree or on the ground, with young ones or eggs, and the dam sitting upon the young or upon the eggs, thou shall not take the dam with the young. Thou shall surely let the dam go, but the young thou may take to thyself, that it may be well with thee, and that thou may prolong thy days.