Barn owl returns to Po Valley. Numbers in the area dropped by 50% over the last 30 years.
10 nests placed in barns, attics and oldbuildings in the open countryside. Park rangers say the bird's droppings have led to fresh insights into is hunting activities. ALL RIGHTS RESERVED © Copyright ANSA. The barn owl is making a strong. return to the Po valley amid a renesting program after its numbers in the. area dropped.