Cow call when you make noise stalkin' , or to git a bull to answer or come to you, or to stop a bull thet' s headed off. I use my hand to control the pitch from high to low, like a meow. Dependin' on when you use it, one call or a few in succession is good. Vary the level an' intesity dependin' on the use as well. A mournful, long meow is a hot cow, or a lost one. Short calls sounds like a cow callin' a calf or tryin' to locate the herd. Two shorts an' one long means " I cain' t find the alph-alpha stack Leroy said was ' round here, can any of you come help me?"