Our tulips at risk!

We would never have imagined that after the weekend we would find all our window boxes dug. The bulbs were outside...Who did that? We are thinking on those black birds, who knows!
In those days , you could not make this up!
Besides, we found out that the bulbs were not sleeping at all , they believe is spring because the warm weather.
The odds had appeared to be stacked heavily againts our Tulip's project.