Several of the posters that have put up their Necropsy results have said they were told it's reportable in their area by the lab or vet involved. You need to find out for your state. Phone the agriculture office or an avian vet. It would be so simple if it were a national program but apparently it's not.
I do not work for the USDA, I'm in Canada, and I was a backyard chicken owner in the AI outbreak of 2003. I learned alot in that and I'm trying to pass this on to you. People that did not report got heavy fines, and those that did not obey the restrictions on poultry in the outbreak caused the commercial industry to lobby for backyard flocks to all be culled. They won in the short term and many flocks were depopulated. We lobbied back and by showing we could be responsible and follow good biosecurity and isolation we had no new restrictions after the outbreak than before.
What they will do when you report depends on what your state program is and what you have done so far. IF you have the sick birds in isolation and good bio-security going they might see that better than if they are in contact with others, that was sure true of AI, places without isolation were depopulated right away. They may just ask you to isolate and not sell till they clear you, or they might bring in free vaccine and do everyone in the neighborhood.
I am currently waiting on a call from the CFIA for the same reason. There are some of these chicks in Canada and the question has been asked what our program is. It is a national program, but there are regional offices and sometimes latitude.
