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
Diademed sandpiper-plover is poorly known and uncommon, and rarely recorded. While its habitat is thought to be secure, it is possible that overgrazing is a threat. Diademed sandpiper-plover The diademed sandpiper-plover or diademed plover ("Phegornis mitchellii") is a species of bird in the plover family Charadriidae. It is monotypic within the genus Phegornis. The relationship of this species to other plovers is uncertain, a 2010 study suggested it may be related to the Australian dotterels. The species is found in the Puna grassland ecozone of the Andes Mountains from Argentina and Chile, through Bolivia to Peru. In this habitat it prefers mossy