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
Plover than the steady probing of some other wader groups. The plover group of birds has a distraction display subcategorized as "false brooding". Examples include: pretending to change position or to sit on an imaginary nest site. A group of plovers may be referred to as a "stand", "wing", or "congregation". A group of dotterels may be referred to as a "trip". The Golden plover spends summers in Iceland, and in Icelandic folklore, the appearance of the first plover in country means that spring has arrived. The Icelandic media always covers the first plover sighting, which in 2017 took place on