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
American golden plover tundra, fields, beaches and tidal flats, usually by sight. They eat insects and crustaceans. Large numbers were shot in the late 19th century and the population has never fully recovered. American golden plover The American golden plover ("Pluvialis dominica") is a medium-sized plover. The genus name is Latin and means relating to rain, from "pluvia", "rain". It was believed that golden plovers flocked when rain was imminent. The species name "dominica" refers to Santo Domingo, now Hispaniola, in the West Indies. The breeding adult American golden plover has a black face, neck, breast, and belly, with a white crown and