African rail
These birds probe with their bill in mud or shallow water, also picking up food by sight. They mainly eat insects, crabs and other small aquatic animals.
Holochilus chacarius
The Chaco marsh rat can swim and dive, and can also climb well; it is a herbivore, feeding on a range of plant materials including sugarcane, rice, banana and other crops. It can make underground galleries with several entrances, but nests above ground, building circular structures of grass up to in diameter and often a metre or more above the ground. Litter sizes range from four to nine, and the young mature at sixty days.