I have 9 chicks ranging from 6-9 weeks, and I started noticing yesterday that they open their mouths when I turn on the garage light at night, and maybe 2-3 more times throughout the day. I have given them earth worms but I just started reading about gapeworm and I'm freaking out! They open their mouths for about 5 seconds and I can see the area under their mouths moving a little. They've all been very active and happy. The only reason I'm thinking it may not be gapeworm is because they ALL are acting this way. Any ideas? Should I start a dewormer just to be safe?