One thing I learned the hard way years ago... when you get the poultry inspector to come do blood tests, round up your birds before she/he gets there and have them either in a hutch, coop, box, etc. that you can pull out one bird at a time to hand to the inspector. If your birds free-range or you have barn or coop, it saves a LOT of time and aggravation to have them all in a confined spot on blood test day. Nothing more embarrassing than running around trying to catch your birds while the inspector keeps checking her watch...