If it is a barred owl call then follow this sequences:

who cooks for you, who cooks for you

just follow the sylibulls (spelling?) and you'll hear it come out right, it helps if you hear a real owl do it.

Around here (Northeast Ohio) the owls go crazy every night and we dont have to worry about locator calls. Also ~ my neigbor has peacocks so they get the gobblers riled up every morning.