C. F. Keil and Franz Delitzsch on Deuteronomy 22:6-7

Deu 22:6-7

The affectionate relation of parents to their young, which God had established even in the animal world, was also to be kept just as sacred. If any one found a bird’s nest by the road upon a tree, or upon the ground, with young ones or eggs, and the mother sitting upon them, he was not to take the mother with the young ones, but to let the mother fly, and only take the young. נקרא for נקרה, as in Exo 5:3. The command is related to the one in Lev 22:28 and Exo 23:19, and is placed upon a par with the commandment relating to parents, by the fact that obedience is urged upon the people by the same promise in both instances (vid., Deu 5:16; Exo 20:12).