In most instances where clipping was reported not to work that I could get a reasonable description of, the clipping was not close enough to be effective. The other instances likely involved the same issue, but the posters appeared less than open to the possibility that the clipping was not close enough and they did not show what was done. Hence I suggest showing your clip. It took me some experimentation to get it down so presumably others will have same issue.Thanks for the link and offer to review!
I see SO MANY people on this forum (and others) who say that despite clipping the wings properly, their chickens still fly high... makes me wonder if I should just go with heavier breeds to be safe.
Check thread below showing how I did a little experiment roughly two years ago.
https://www.backyardchickens.com/th...n-containment-with-perimeter-fencing.1261276/