Flamingos, pelicans and herons inhabit the marshes. The flamingos and pelicans also breed here. Other birds such as flamingos and penguins utilize similar feeding techniques. In the case of flamingos, they have similar lice to those of grebes. The fossil palaelodids can be considered evolutionarily, and ecologically, intermediate between flamingos and grebes. The fossil Palaelodids can be considered evolutionarily, and ecologically, intermediate between flamingos and grebes. Adult greater flamingos have few natural predators. The larvae and crustaceans are food for fish and greater flamingos. Bhigwan is famous for birdwatching especially flamingos and wild life photography. As a result, the Andean flamingos are threatened species. Lake Natron is where two-thirds of Lesser Flamingos reproduce. Andean flamingos filter surface water for food, but borax mining pollutes this water. Subadult flamingos are paler with dark legs. Less than 1% of the flamingos observed were juveniles. Even John Waters, in his "Pink Flamingos" period, realized that wit was also necessary.