Wieler 1 , C. Ewers 1 1 Freie Universität Berlin, Institut für Mikrobiologie u. Tierseuchen, Berlin, Deutschland 2 Vet Med Labor GmbH, Ludwigsburg, Halle, Deutschland Introduction: Several studies give evidence for the carriage of Extendedspectrum beta-Lactamases (ESBL) producing E. coli in the feces of wild birds even in remote areas, where the presence of antibiotic selection pressure is assumed to be very rare.