Palm Tanager (IMAGE) ETH Zurich Caption The nondescript Palm Tanager (Thraupis palmarum) feeds on berries and excretes the indigestible seeds elsewhere. This is how the bird is spreading trees. Credit Mathias Pires Usage Restrictions For editorial use only! License Original 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.