Wow, talk about clueless. The 2 piglets in the trap turned into juvenile boars very quickly. Apparently the author thinks all pigs are boars.
In Europe, where this took place, all pigs/hogs are boars including sows. "Boar" or "boars" are are just the generic common names for wild pigs/hogs. Hunters will describe coming across a "group of boar" when referencing a sounder. "European wild boar (Sus scrofa
) is the common and scientific name for the species, regardless of age or sex.
Here is a wiki description...
Boars are typically social animals, living in female-dominated sounders consisting of barren sows and mothers with young led by an old matriarch.
This is very much with lions. A male lion is called a lion. A female lion is a lioness. A pride of lions will include males, females, and juveniles.
So "female boar" in various European languages vernacular is no different than a "female lion" in our vernacular.