(a) It is unlawful to do either of the following to an immature depredator mammal while it is in its den:
(1) Use a snare, hook, or barbed wire to remove the mammal.
(2) Use fire to kill the mammal.
(b) Nothing in this section shall prohibit the use of fire-ignited gas cartridges or other products registered or permitted under the Federal Insecticide, Fungicide, and Rodenticide Act (7 U.S.C. 136 et seq.).