Naturally Selected

Brood reduction, a strategy where some offspring are allowed to die to ensure the survival of the strongest, is observed in over 300 bird species worldwide.

This behavior is common in species where food resources are unpredictable or limited, such as raptors like eagles and hawks, seabirds like boobies, and some songbirds.

Parents may lay more eggs than they can raise, with younger or weaker chicks often perishing due to sibling competition or reduced parental care.

This strategy increases the chances of at least one chick surviving, ensuring reproductive success under challenging environmental conditions.