after some extended online research (me + google + 15 min!), it seems that waterfowl can get pox. wild ones don't usually, but domestic ones can. that fits my goosies' symptoms, and i'm pretty sure avian pox is endemic in our mosquito population. i didn't even think about vax'ing the geese.
go me!!
oddly enough, my family has raised chickens all my life 20 miles north of here and i had never heard of chickens getting "chicken pox" until this year.
as for the earlier poultry outbreak, we mainly sprayed the worst offenders with poultry aid, and added extra oils to their water. rosemary, oregano, lavender, etc... thankfully it was only dry pox, not the wet pox kind. we still lost a couple hens, mainly because i didn't know what i was dealing with right away.
unfortunately, keeping the geese out of the pond is not really feasible with our property. we have three acres, and the pond meanders across 1.5. i wonder about treating them with that "wonder" wound powder or silver to seal the pox after cleaning them (what is the singular of that?? pock?)
thanks so much for all your help!