Some of the ways that a chicken hawk gets into the chicken coop are:
a. Chicken hawk is screening those allowed to enter.
b. Coop guarded by well-meaning guard who thinks all chicken hawks will change lifestyle.
c. Coop guarded by incompetent guard.
d. Hawk let in because of political correctness.
e. Hawk in efficient disguise that fools guard.
Regardless of how it enters, one can expect damage in the coop, because a hawk is a hawk is a hawk.