(6541) HERRERA, CM. & A. RAMIREZ, 1974. Food of Bee-eaters in soutern Spain. Br. Birds 67(4): 158-164. — (First Author Estac. Biol, de Donana, Paraguay 1, Sevilla, Spain). Pellets of Merops apiaster, collected at 3 nesting colonies in Western Andalusia, contained 0.5-8.8% of not further identified Odon.