I totally agree with what Tony c is saying the weather isn't constant and the loft spot on it's hard to gather any form. However if your widowhood cocks are flying continually for 40-60 minutes, in my experience they are not as Keith lemon says 'Bang Tidy'! my cocks are right when they are out of sight as soon as you let them out 15-20 mins and come back over, land and are like springs compressed and all explode in the sky continually doing this roughly every five minutes and when in the air they are spread all over the sky