gracupica nigricollis on distant treetops and acridotheres javanicus

acridotheres antics area avian birds black black-collared bright brown calling cheerful chirping common distant distinct dynamic energetically environment european eye eyes feathers flits flutter fly food forage foraging glossy gracefully gracupica grass grassy hop ideal insects intelligent interact iridescent leaves lively loudly lush melodic mynas nature nigricollis patches perch perches perfect playful playing plumage point sharp shimmering sky sleek slope slopes social soft soil sound sources space species starling starlings sturnus sun sunlight surroundings treetops vantage voices wings yellow