I have 4 jumbo coturnix quail. As far as I know, they are all female (they all have chest spots). Now the quail with the least amount of spots is making a weird croaking sound. She isn't crowing or anything like that. The other three chirp or trill while this one sounds like a really small bullfrog. It's eating well and nothing seems to be wrong with it at all. We are averaging about 3 eggs a day between the 4 quails. Do I have a weird male? or maybe the legendary frog whisperer? Any help would be appreciated!