As the common name suggest , the noisy miner is an unusually vocal species . Previously known as the garrulous honeyeater , it have a large and varied repertoire of songs , calls , scoldings and alarms . Most are loud and penetrating , and consist of harsh single notes . It have 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 berigora ) , or other large flying birds including the Australian magpie ( Cracticus tibicen ) and the pied currawong ( Strepera graculina ) . The aerial predator alarm call is a series of high @-@ pitched , slurred whistling notes . The broad @-@ frequency alarm calls are a series of ' churr ' notes , low pitched and harsh , occurring at low and high levels of intensity . The narrow @-@ band call is used in situations where the bird signal the presence of a predator and restrict information about its own location , while the broad @-@ band alarm is used to attract attention , and can initiate mobbing behaviour . These churring 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 .