Crocodile bulks of swallowed prey flesh and bone. Many large crocodilians swallow stones (called gastroliths or stomach stones), which may act as ballast to balance their bodies or assist in crushing food, similar to grit ingested by birds. Herodotus claimed that Nile crocodiles had a symbiotic relationship with certain birds, such as the Egyptian plover, which enter the crocodile's mouth and pick leeches feeding on the crocodile's blood; with no evidence of this interaction actually occurring in any crocodile species, it is most likely mythical or allegorical fiction. Since they feed by grabbing and holding onto their prey, they have evolved
Quail-plover Quail-plover The lark buttonquail, lark-plover or quail-plover ("Ortyxelos meiffrenii") is a species of buttonquail in the family Turnicidae. It is monotypic within the genus Ortyxelos. The quail-plover is a small, short-tailed cursorial bird which looks a little like a miniature courser when on the ground. The upperparts are a sandy-rufous colour and the underparts mainly whitish. They show a distinctive wing pattern in flight when the contrast between the white primary coverts and the black with white-tipped remiges to form a distinct diagonal band on the upperwing. Its fluttering flight style is rather lark-like. The females are slightly darker than