I purchased two new button quail from a local pet shop. I previously purchased two Chinese button quails from the same shop. This time, the quails were tagged as "Japanese button quails." Do "Japanese" button quails exist? I've only heard of Chinese button quails or Japanese quails (coturnix). These look almost identical to Chinese button quails with the exception of being slightly lighter in color and slightly bigger. I've had Japanese quails before and these are much smaller than those. Any ideas?