flynn always backs up on a tree or bush or bank to have a pooh! i also know two ther boys who do this. today he backed up onto a gorse bush to do it which must have hurt!!!! the girls go in the hedge but dont seem bothered by hight, wheras flynn likes to get his as high as he can? is this a boy/marking kinda thing?
One of my boys likes to leave his poo as high as possible too. In a flat field the tallest tussock of grass (or patch of nettles ) will be his chosen spot.