I'm so happy I finally found out why my parakeets were always pecking at each other around their bed time. They have two perches they can sit on parallel to each other and a toy is in the middle. It's one of those toys with string and wooden blocks that my birds like to clean and groom. At night, when they're grumpy, they don't want the other bird touching "their" toy. So, Pony gets mad at Soda for touching the toy, and Soda gets mad at Pony for touching the toy.
Don't touch my toy!!!
I'm so glad that they weren't fighting about anything serious. I thought I would have to separate them and they are so lovey dovey during the day time. I'm so glad everything worked out for my little guys.