Back in the days, I was addicted to Pokemon. I wanted someone to play with, but because all my friends thought pokemon was 'a thing of the past', I had no one to play with. Later, I found out about Netbattle from gamefaqs, and I quickly registered on Netbattle under 'Leomon', which happened to be my RL nickname. However, people kept wondering what a Digimon was doing playing Pokemon, and thus I created a new nickname just so people would stop asking me those questions. I remember that back then, I just finished watching the final episode of Season 1 of Gundam Seed, and the mechnical bird there, named 'Birdy' was stuck in my head. The name was short and sweet, easily to type, and thus Birdy was born on Netbattle.
Later, I found out about Smogon from Netbattle, and I decided to register under Birdy, just so my names are the same. The name just kinda kept itself, so I'm Birdy on Shoddy too.