I' ll answer yer question. I ain' t had dependable results callin' cows. Sometimes they' ll respond, mostly they jus' ignore the call. I' ve been as close as 20 feet from grazing cows an' they generlly don' t even acknowledge a cow call, even when a bull is headin' in at full steam. After the heards break up, you might have better luck with a solitary cow and a calf call. But then, you probly would be rifle huntin' at that point.