Their plumage is both bright and defined, rather than darker and duller, so they are likely both male.
However, in the case they were both female, I would draw that conclusion based on the fact that the one on the right is slightly smaller.
IMO at my school, boys are more loud and obnoxious. Many times every hour I hear teachers /pleading/ with boys to please shut up and stop talking. Not once this semester have I heard anyone tell a girl to stop talking.
However, in the case they were both female, I would draw that conclusion based on the fact that the one on the right is slightly smaller.
Just walk into any school and you will see the truth