I have a blog post from October in which I've summarized the Tacoma municipal code regarding domestic fowl. The blog post also has some links to more resources regarding Tacoma's chicken laws, including the entire municipal code.
The chicken laws in Tacoma were recently changed to allow more lenient setback requirements, however there is now a limit of 10 chickens per household. They still do not allow roosters. Not sure if this applies to Parkland however since it's outside the city limits?