Ok.... I'm new to chickens. Is sour crop the same thing as impacted crop? Almost all 28 of my 3 week old chicks have something... a large mass in the breast area. Some are hard and feel grainy and others are soft and spongy. I've been using pine shavings and I'm sure my little geniuses have been eating them in spite of a nice feeder full of crumbles. I never dreamed they would do that at their age. I've removed the shavings and have given each of them a couple drops of olive oil. I read that on another post. I also read something about flushing them with baking soda water. What is the most effective? My girls turn their noses up at yogurt no matter what I mix it with so that's not an option. Now about massage... how much pressure? How long? Upside-down... really? As a new chick mom I worry about over-reacting and/or doing the wrong thing. I started with 34 chicks and don't have the heart to lose any more especially from my actions or inaction. Please advise.