The site comprises a canal with a delta of mudflats, saltmarshes, and lagoons. Two low hills are covered with dense scrub. Much of the area has been reclaimed for arable farming.
This site is important for breeding, passage and overwintering waterbirds. Species of global conservation concern that do not meet IBA criteria: Aythya nyroca (passage, wintering), Haliaeetus albicilla (wintering), Aquila heliaca (wintering), Gallinago media (passage).
BirdLife International (2020) Important Bird Areas factsheet: Kalamas delta. Downloaded from http://www.birdlife.org on 08/04/2020.