 As the common name suggests , the noisy miner is an unusually vocal species . Previously known as the garrulous honeyeater , it has a large and varied repertoire of songs , calls , <unk> and alarms . Most are loud and penetrating , and consist of harsh single notes . It has two broad @-@ frequency alarm calls that are used when mobbing intruders into their territory , or when predators ( including humans ) are sighted ; and a narrow @-@ frequency alarm call that is primarily used when airborne predators are seen , such as the brown falcon ( Falco <unk> ) , or other large flying birds including the Australian <unk> ( <unk> <unk> ) and the <unk> <unk> ( <unk> <unk> ) . The aerial predator alarm call is a series of high @-@ pitched , <unk> whistling notes . The broad @-@ frequency alarm calls are a series of ' <unk> ' notes , low pitched and harsh , occurring at low and high levels of intensity . The narrow @-@ band call is used in situations where the bird signals the presence of a predator and <unk> information about its own location , while the broad @-@ band alarm is used to attract attention , and can initiate mobbing behaviour . These <unk> calls vary between individuals , and laboratory tests show noisy miners can distinguish calls by different birds . Hence , this may be integral to the complex social structure of the species . 
