If Theodius had an animal companion, it would likely be some manner of corvid, such as a magpie. Fallgrove has a large population of crows, jackdaws, magpies and ravens, and Theodius gets along with them amicably – after all, they are his closest neighbours, so you might as well get used to the idea.
I must say I personally really like corvids myself. They’re definitely my favourite birds! This picture is filled with many of my favourite things: a book pile, glass jars, a bird, and a scoundrel of a mage smirking at you.