>>41784984>A legendary bird Pokémon that is said to appear to doomed people who are lost in icy mountains.>One of the legendary bird Pokémon, it chills moisture in the atmosphere to create snow while flying.>A legendary bird Pokémon that is said to appear from clouds while dropping enormous lightning bolts.>A legendary bird Pokémon that appears with a gigantic thunder storm. It flies with the buzz and crack of electricity.>Known as the legendary bird of fire. Every flap of its wings creates a dazzling flash of flames.>This legendary bird Pokémon is said to bring early spring to the wintry lands it visits.Each of these entries tell you: their role in the culture of the Pokémon world and what their actual capabilities are. Articuno has a piece on how it interacts with humans; Zapdos shows how it interacts with the weather and Moltres' one explains the effect it has on actual environments. In addition, the locations you find them in are actually NOT what you'd expect. You find Zapdos in a man-made power plant. Why? Well, when you catch it you realize it can gain power from electrically charged clouds, so it can probably do the same from man-made things. A lot of stuff in gen 1 was subtle social commentary on the nature vs technology debate that was going on at the time - Sonic has a similar narrative with the colourful alien animals vs the harsh metal of Robotnik's forces. You find Moltres on Victory Road which as far as I can tell is a reference to the Olympic flame, and you find Articuno sequestered away on the Seafoam Islands, a secret place where a mystical beast might go to rest. There is interplay at work in how you encounter them.
As for Heatran?
>It dwells in volcanic caves. It digs in with its cross-shaped feet to crawl on ceilings and walls.Wow
>Its body is made of rugged steel. However, it is partially melted in spots because of its own heat.Wow
It's a Fire/Steel Pokémon that lives in a volcano. You find it in a volcano. That's it.