The vast majority of those lists can be merged into a significantly smaller number of lists. "List of birds to the Chicago area" can be merged into "List of animals native to North America", for example. If a list gets too long, it can be split up, but otherwise it's fine as one list. If such a list needs to be split up, it should be done in such a way as to reduce redundancy, eg. "List of animals native to the whole of North America" and "List of birds native to Chicago area but not the whole of North America" (if someone can come up with a shorter name, please do).