According to the FBI website www.fbi.gov 2010 salary table, agents beginning with an undergraduate degree are hired in at a GS-7 rating, while those who have an advanced degree begin with a GS-9 rating.
A peacock makes an eery high pitched sound that resembles a baby crying! This sound has fooled many people. They are making these sounds as mating calls.peacock sound is called scream.
It may be that infrasound is the peacockâs secret call, a way of signalling its whereabouts to other peafowl without alerting predators such as big cats and stray dogs. Could birds with similar tail displays, such as Australia's lyrebird, also be luring their mates with stealthy sounds?