"The possibility students might follow the advice horrifies Erika Paul, a B.C. SPCA animal protection officer who wants the university to immediately tell students that killing or hurting the rabbits is illegal and inhumane"

It is not against the law to hunt and kill feral rabbits. They have to belong to some one to come under the Criminal Code and they have to belong to the killer to fall under the Prevention of Cruelty to Animals Act if he does not make it painless.