Forum:SH:Immigrated species field in planet infobox

For some time, I've seen numerous lengthy "Immigrated species" fields in the Planet template, some of which include species that are only shown to be visiting the planet in whatever source was referenced. To me, that doesn't seem like it should count as an "immigrated" species. So my question is, what should and shouldn't be put in that infobox field? For example, if Chewbacca was to briefly step onto a planet, would we include "Wookiee" in the immigrated species? Obviously, this doesn't really matter either way, I was just unsure. Zed42 (talk) 03:35, January 10, 2019 (UTC)