i have a 4 day old calf, and the cow hasnt let us get close enough yet to determine the sex. would the testicles on a 4 day old bull be obviously noticible? it has what looks like the sheave where the penis should be, but when we lifted the tail, there werent any testicles. we didnt want to disturb to much, as the cow was getting annoyed already. any other suggestions on how we can tell. amd when should we have it banded if it is a bull. this is a angus if it makes any difference. please help a rookie out!