Pigrons have a special ability to become transparent and nearly invisible, allowing them to fly through solid blocks. As a transparent Pigron starts to attack, it will become visible again. When it starts moving towards the player, it occasionally makes an audible growl. If it is in its solid, visible state and is blocked by solid blocks on its path to the player, it will become transparent again to pass through them.
When the Pigron growls, it sounds like an oddly distorted boss noise when summoned or attacking.
In rare cases, Underground Cabins will have a functional trap consisting of a pressure plate and a Pigron Statue. This allows them to be spawned pre-Hardmode, however, they will not have any drops. The variant is randomized when they are spawned this way.
Despite Pigrons coming in three different colors and slight variations, the banner (along with the Scaly Truffle’s Pigron Mount) is always pink.
Pigrons will only spawn on snow blocks, not their respective ice block variant.
Utilizing the Hunter Potion makes finding and dispatching a Pigron much easier, as it glows when it would normally be nearly invisible.
Pay attention for growls while in Ice biome, since Pigrons will usually be heard sooner than they're seen, and the sound they make is unique.
The Pigron Statue can be used to easily unlock all three variants in the Bestiary, saving you the trouble of having to create all of the respective biomes.
The name is a portmanteau of the words "Pig" and "Dragon". This was confirmed by Cenx in the IRC.
Pigrons bear striking resemblaces to Pommy Dragon from the Bomberman series. It is unknown if this was intended or not.
There is a discontinued plush Pigron sold in real life by Toynk Toys, based on its purple appearance in the Underground Corruption.
The Bestiary entry for the Pigrons: "This elusive dragon-pig hybrid has excellent stealth capabilities despite its rotund figure. It is uncertain how they came to exist."