>>10402758
huh I didn't exactly understand what polytypy (i wish that was the word) is, and I found a neat little tidbit, makes me want to make an infographic
>Some species of birds are widespread over the archipelagos of the southwest Pacific, where nearly every island may have a form sufficiently distinct to be given some kind of taxonomic recognition. For example, 73 races are currently recognized for the golden whistler (Pachycephala pectoralis). Before the realization that species could vary geographically, each island form was named as a separate species (as many of the races of P. pectoralis actually were). It is often believed—and often it is only belief rather than fact—that all of these now genetically isolated populations arose as local differentiations of a single stock. Thus, they are now usually classed in zoological usage as subspecies of one polytypic species. The term polytypic indicates that a separate description (and type specimen) is needed for each of the distinct populations, instead of one for the entire species. The use of a trinomial designation for each subspecies (e.g., Pachycephala pectoralis bougainvillei) indicates that it is regarded as simply a local representative (in this case, on Bougainville Island in the Solomons) of a more widely distributed species. The decision on whether to consider such island forms as representatives of one species depends partly on whether, in the judgment of the taxonomist, populations from adjacent islands are sufficiently similar to allow free interbreeding.
https://www.britannica.com/science/taxonomy/Nomenclature#ref498177