>>40333264
Well, they do [have hollow bones]; but the bones of birds are not entirely hollow, nor all all the bones hollow/partially hollow. the same is true of harpies
>>40333011
[Harpies are] Not too resilient; Harpies aren't much more resilient than a human; they make up for this by flying low and in large groups, surrounding and overwhelming their prey.

How I learn of this is another story with my witch gf; for background, we live in a town in the Casade mountain range

>be a couple years back
>a little while after the merge
> our town had formed a "well organized militia"
>really was a small army
>I was a guy who did patrols with some other guys on "technicals" along the mountain roads
>Basically keeping the roads surrounding the town safe and clear
>one morning, we come across three bodies and a bunch of feathers
on closer inspection two guys and a harpie
>One guy is alive, almost hypothermic and roughed up with a broken leg
>harpie has a grapling hook gouged into it, has been beaten to a pulp; it's dead
>other body was another man with lots of defensive wounds; also dead
>Take him and the bodies into town, to the "hospital"
>was basically a large re-purposed house
>gf was doctor on duty
>manages to get guy conscious and talking
>he and the other dude were trying to travel through the mountains
>trying to innawoods
>only had one shotgun and a rifle between them, and were traveling horseback for innawoods reasons
>they were ambushed by three harpies
>they got one with the shotgun before the harpies swooped in to grab them 
>the survivor got the other harpie far enough away to peg it with the shotgun
>other guy was taken off his mount and was being flown off with
>the survivor (who said he had the grapple hook and rope for climbing) said he rode after and threw the grapple at the harpie
>somehow nailed her, but she kept flying pulling him off his mount
>basically dragged him around until she got too tired
>dropped his friend from a great height
>friend died from the fall
>survivor still fought to pull the harpie in, beat her to death out of sheer rage
>then collapsed out of exhaustion.
cont.
----------
Here's how I know about the marrow
>while gf was nursing guy back to health, she gave him a "magic soup"
>"It was made from the marrow of the harpie, it's a powerful healing agent"
>she only ever said this to him, no one else, ask her why
>"it isn't really a healing agent, I just told him that because it would make him feel better"
>what.png
>basically, the soup wasn't magical or for healing puposes, she was just using a sort of placebo effect to get him to be more willing to talk about the harpie attack
>"also broth from harpies make for a very robust broth in a soup; works well to warm you up. I can make you some if you want anon, I still have plenty of harpie left at home"
Harpie actually doesn't taste that bad, but you can only really use them for soup.

>>40333820
[When fighting harpies] All else fails, volley firing with multiple guys works really well, they can't dodge multiple projectiles grouped around them.

Got more mountain town/witch gf stories if people want them; current shenanigan is a bunch of tribal and feral orcs moving through the Cascades, like the orcs in my first story.