On high on hay bales

The other day I disturbed Daisy's nap when I had to get another large hay bale for the cattle.  Yesterday Daisy was again on this bale before she came down to supervise me in the planting of the three evergreen trees. Today I took the hay bale Daisy was laying on in the photos and put it in a feeder for the calves to eat from.  Not sure how Daisy gets up and down from the top of these bales.