Humans call police when they need help, so as the mother duck on the video below.
When a city police officer heard a crying mother duck on the road, he immediately knew something was wrong. After doing some investigation, he and his fellow officer learned that her ducklings were trapped inside a sewer drain.
It was believed the duck laid her eggs there and did not know how to get her ducklings rescued.
Being a caring mother, all she knew was to quack, to ask for help.
Fortunately, she met the right people.
[embedyt]https://www.youtube.com/watch?v=EmFCplrAXrU[/embedyt]