sentences:  It is most common in open, low vegetation habitats, such as savanna and ranch land, and in Venezuela, South Africa and Trinidad and Tobago it is described as being particularly attracted to burnt or harvested sugarcane fields and the waste from the cane.In the absence of suitable roost sites, they may sometimes roost on wires where they are more exposed to predators.Individual birds tend to return to the same wintering locality each year and congregate from a large area to roost in reed beds.