XXI.—An Investigation of the Pellets of the Common Heron (Ardea cinerea cinerea)

• 1 July 1940
• journal article
• research article
• Published by Wiley in Ibis
• Vol. 82  (3) , 433-450
• https://doi.org/10.1111/j.1474-919x.1940.tb01665.x

Abstract