I have all sizes available $19.99 plus shipping and handling.
I can stand on a power line and not be electrocuted. However if I stand on two I will surely die. Birds aren't big enough to stand on two though, so they never die from it.
Viruses don't affect everything the same way, or even at all.
Everything I've seen about the birds has stated that they appeared to have suffered blunt force trauma and internal bleeding. That means either they hit something, or something hit them. If they were in an excited state, and flying at night (when they usually sleep) they could very well have rammed into each other and caused this on their own. Fireworks on new years is an obvious possibility, but there are others. Perhaps they flew into a cloaked Nibirian assault cruiser, or lightning struck a tree.
Anyway, can I have your stuff?