Cormorant (IMAGE) American Society of Agronomy Caption A cormorant grabs its lunch from the lake. A single cormorant can defecate approximately 4 g of nitrogen and 2.5 g of phosphorus daily. Credit Young Pil Choi. Usage Restrictions Please use with story only. 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.