dicrurus macrocercus standing on a wire

abundant adaptability adaptation adult beak behavior biodiversity breeding calling camouflage care chick claws common communal communication conservation courtship displaying diurnal dynamics ecology ecosystem ecotone endemic environment evolution feathers feeding fledging flight flocking foraging forest grassland grooming habitat habituation harmony hatching incubation insectivore invasive juvenile locomotion mating migration mimicry nesting nocturnal observation omnivore parasites parental perching plumage population predation predators preening rare resident riparian roosting scavenger signals singing socializing species survival tail territoriality territory urban urbanization vocalization warning wetland wings