Actograms of 15 Different Patterns (image) Kansas State University Share Print E-Mail Caption Kansas State University ornithologists contributed field data to help show diversity in parenting responsibilities among 32 species of shorebirds worldwide. The figure shows 15 different patterns for each parent's time on the nest over 48 hours -- females are depicted in yellow and males are in grey. Incubation bouts ranged from less than three hours to up to 48 hours. Credit Nature Usage Restrictions None Share Print E-Mail 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.