Well, this ended up looking a little more like a death-scene than I intended.
Multics-sama's (apparently) bleeding to death, Unix-sama pulls her OHSHI-! face out of mothballs, gives it a certain OH GOD WHAT DID I DO?! twist, and horror is born!
Making this page was positively traumatic for me; I insisted upon researching how birds' wings break and where they tend to get injured. That had me going all over the Interwebs looking for reference pictures of birds with broken wings, which was TRES TRAUMATIC. :< (Though I'm now thoroughly familiar with avian wing anatomy).
Er... so yeah, that's a compound fracture to the humerus. It would be a strange break for a bird, but this isn't a bird we're dealing with. Well, not entirely. It turns out birds have quickly calcifying bones, so if a break isn't set properly (and rather quickly) it can deform the bone structure for life (which would be a good anatomical explanation for why Multics-sama's left wing is paralyzed. Or whatever. I just want to put my newly found avian anatomy knowledge to use!)
For more info on this comic series, see the first page.
For more info on this chapter see the first page of Chapter Five