I think parakeets like it, my chickens eat them - can we jin in and eat prepared or cooked in some way? (There are masses)
The fruits are larger than normal cherries, about 25mm:
Leaves are hairless, smooth, fine sharp toothed no spikes. The keyed system says Japanese cherry but it may not be a cherry at all - leaves are much smaller than my eating cherry and have a bronze appearance. Fruit stones are cherry like.
Japanese cherry (Prunus serrulata) has bigger leaves, as does the wild cherry (P. avium), which also has fruit about an inch across, like yours.
The degree of purple-bronze-green-ness is influenced by several factors, of whic the particular clone is just one. Shade will tend to lead to greener leaves, bright light and cold to more-purple. Nutrient deficiencies and pathogens can also affect the colouration.
The fruit are eminently edible. Witha bit of searching, you'll find plenty of ways to eat them. This author, for intance, recommends making jam, since cooking enhances the flavour