I have a dwarf pixie frog, and when I asked here everyone said female. Last night I think she was making some sounds, I have heard this once before. The first time I heard it was the first night I got her. Last night I heard the same sound, coming from her tank. It sounds like a creaky door and only lasted a few seconds. When I checked on her she was sitting in her water dish like normal. Both times she made the sounds soon after all the lights were out, she's in my bedroom and I didn't hear anything after that one call. Has anyone heard females call? Is it common?