It's one of many of the True pheasants, a Southern Green pheasant or (Phasianus versicolor versicolor). They are endemic to Japan.Absolutely stunning ! I Especially like the green breasted one. What kind of ring neck is he ?
Also in the group is P. versicolor tanensis or Pacific Green pheasant and P. versicolor robustipes or Northern Green pheasant.
The last bird is a P.c. straunhi or Straunh's pheasant. They are in the 'Gray-rumped Group' of True pheasants. The first bird appears to be Phasianus colchicus torquatus or the ubiquitous Chinese Ring-necked Pheasant, also in the Gray-rumped Group.