The Caspian plover feeds mainly on adult and larval insects present in grassland or arable pastures(3). This includes beetles, ants, caterpillars and flies (6). In the non-breeding season it is often found in urban areas, hunting for its invertebrate prey in refuse heaps(3).
During the breeding season, the Caspian plover builds a nest that is a scraped indentation on the groundamongst loose vegetation, intricately lined with grass and small stones (7). Into the nest the female will typically lay three eggs(3),between the months of April and May of each year (7). Both parents contribute to the incubation of the eggs for around 30 days (6), with the female incubating during the day and the male during the night. The eggs will hatch between early May and June and the juveniles are fully capable of flight around a month after hatching (7). Building a nest on the ground means that Caspian plover eggs and chicks are vulnerable to predation. Many species that are closely related to the Caspian plover have evolved a variety of behavioural traits to defend their young from predators, such as adults pretending to have a broken wing in order to draw predators away from the nest (8); however, it is not clear whether the Caspian plover undertakes such ‘distraction displays’.
After the breeding season, the Caspian plover travels in flocks of five to ten birds to its wintering sites. Once there, it can be found in flocks of up to several hundred individuals (3).