I have 6 2 1/2 wk olds. They were outside today for about 15 min in the grass, eating bugs and getting some sunshine. Later I noticed the biggest of my bunch, breathing with her mouth open. She was doing it while walking around outside with her wings slightly out. (after she found a grub and ate it) Like she was the best! Lol. But now I am worried, I have rarely seen one pant. the temp is 90, and have food and water. She is eating fine and was running around all day.