I was originally planning on having my avatar be separate from my characters but 'Poquito Bird' just morphed into two different characters in the story:
Me: Pigeon / Quail / Kookaburra

Pico (base design is the same, darker coloring, no wing patterns, overall jerk Bard of the group):

Commander Iris (blue bird with red beak, wing pattern taken from original avatar):

I've used Pico as a self insert for my recent 'Shout-Out Summer Special' comic, but used yellow dialogue boxes with newprint 'Ditko' dots to show its the author speaking.

I'm probably going to do a redesign, but I just love my little birds so much!