It's for the Grandkids! (IMAGE) Indiana University Caption An adult female junco is pictured here defending a nest that contained three nestlings sired by an extra-pair male partner. Credit Nicole Gerlach, Indiana University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.