Penguins by Conservation Status
The IUCN Red List sorts species by how close they are to extinction. Reading the catalogue this way shows something the alphabetical list hides: risk is not evenly spread across the family.
Every conservation status in the catalogue
5 entries across all 19 penguin species, ordered by how many species each one covers.
Single-species conservation statuss
Each of these is held by exactly one species — usually a bird confined to one island group or one narrow niche. That isolation is normally the story.