Story thread · 3 reports / 3 sources

27-year study finds female birds often die younger than males

timesofindia.indiatimes.com · 11dShare

A comprehensive study spanning twenty-seven years has revealed that female birds face lower survival rates compared to their male counterparts. This trend has been observed in thirty-five distinct bird species throughout North America. The challenges posed by migration and reproduction seem to disproportionately affect females. Furthermore, genetic factors related to sex chromosomes may play a role in this issue.

First report: Female birds have shorter lifespans than male birds, researchers find — newsroom.ucla.edu, 12d