Md. Code, Natural Resources § 10–211

(a) The Department shall establish a program to control the population of the nonnative bird species known as the mute swan.

(b) The program established under this section, where appropriate, may include:

(1) The managed harvest of adult mute swans; and

(2) The solicitation of licensed hunters to participate in the managed harvest of adult mute swans established under this subsection.