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.
Xerocole
Xerocoles get a substantial amount of hygroscopic water from their food. Many feed on moisture-filled plants: the aardvark obtains water from the wild cucumber and the camel eats succulents and bushes in the winter, getting enough water to go two months without drinking. The oryx eats "Acacia" leaves late at night, when water content is highest: in the hot, arid daytime the leaves are only 1% water; but in cooler, more humid night the leaves are 40% water. Some xerocoles are able to obtain water from halophytic (saltwater) plants, as they can metabolize high amounts of oxalic acid and produce very concentrated urine. The chisel-toothed kangaroo rat also mitigates the saltiness of the halophyte it eats (the shadscale) by using its broad, sharp lower incisors to scrape off the leaves' salty outerlayer to reach the less-salty center.