Injured duck

Hey guys,

Somewhat new to town and on my walk tonight, i found an injured muscovy duck whos leg was significantly damaged. I called 3 different wildlife numbers, left 2 messages and managed to speak to one representative who told me they're an invasive species so the wildlife centers cant really help. Just wondering if anyones come across a similar situation or had any ideas how I could help the duck? I know at the end of the day some may say it's just a duck, but i would love to try and help it if i can. Thanks