motacilla alba ocularis feeding on the stream bank

abundant adaptation alpine altricial behavior biodiversity brooding calling camouflage carnivore common conservation display diurnal diving ecosystem endemic feathers fledgling flightless foraging forest freshwater gliding grassland grooming habitat hatching herbivore hovering incubation invasive juvenile marine mating migration migratory monogamous nesting nestling nocturnal omnivore parasites parental perching plumage polygamous population precocial predation predators preening protection resident riparian roosting seasonal shrubland singing soaring social solitary species swimming terrestrial undefined vocalization wading wildlife wings