Every month, museum visitors choose the exhibit they liked the most. What they stood out for July was the Cattle Egret (Bubulcus ibis), a semiaquatic, partially migratory bird of heron (family Ardeidae). Its name comes from the Latin word Bubulcus meaning shepherd. It is the only species of heron that feeds on insects. They even like to spend the day with herds of herbivorous animals and sit on their backs, where they feed on the parasitic insects that fly around them. Thanks to its eating habits, it is considered a useful species for agriculture and animal husbandry, because it reduces the number of harmful, parasitic bugs. It belongs to the species of least concern, as its population is spread throughout the world.