Golden-Crowned Sparrow (IMAGE) University of California - Berkeley Caption The Golden-Crowned Sparrow, one of the 53 species of birds tested in the UC Berkeley study and a common sight in suburban areas, was revealed to be an important host of the Lyme Disease-causing bacteria Borrelia burgdorferi. Credit Michael McCloy photo Usage Restrictions All rights reserved. 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.