I'm sorry to hear about your sister's cancerous lymph nodes, but I think that's fairly common (at least I had them way back when). The surgeon sounds positive he got it all, so your sister should recover nicely despite having to go through radiation treatments.

Tell her to hang in there! She must so appreciate your presence and support. I know how much you must miss being in Rochester during fledge time, but the young falcons can always use moral support even from long-distance.
I really enjoyed your photos and videos. You may be stuck there longer than expected, but at least it's a beautiful area with lots of interesting pets, flowers, and wildlife.
Dot in PA