I have a pullet probably 10 or so mo old was doing fine her happy self went to check on her this morning I thought she was dusting herself but looked closer and she couldn't get up. When I pick her up she kicks her legs wiggles around but when I put her down she simply falls over. She's eating good bright eyes comb normal just laying there. I suspected mercks but it came on sudden and she's not paralized cause when I pick her up she can kick and move around, pushes off with her feet with strength too any ideas thanks