All I said was that this person, who is and has been a wildlife rehabber and educator of the public regarding wildlife, said that THIS AI has not been found in songbirds. Yes, they do test songbirds if one is brought in dead if it is in the midst of a pandememic of this magnitude. I'm sorry I mentioned it. Please forgive me. Regardless of whether songbirds do or do not carry the virus, we still clean and disinfect our feeders. As everyone should.Short story on songbirds: Back in 2015, before we had domestic birds, a song sparrow slowly hopped up to our back door, clearly in pain and probably looking for a spot to rest. I didn't know much about birds at the time but called the local Audubon Society to ask if I should bring it in or what to do. The person I spoke to said that an avian flu was circulating and it was likely the cause of the sparrow's problem. They said there was nothing they could do to save it from death but if I brought it in, that they could put it down humanely to end its suffering. I followed their directions of using gloves to handle the little thing and placed it in a box, but as I was about to back out of our driveway, saw the sparrow sort of go into convulsions and die.
The person at the Audubon Society didn't insist that I bring the bird in either way for testing and again, I knew very little about birds and even less about AI at the time, so my husband took care of disposing it and that was that. Knowing what I know now, I definitely would've taken it in to see if it confirming AI was possible. All this is to say, that one wildlife professional thought it was likely that a songbird was dying of AI.