I dont think this should be to a vote as it should all be your desion, and its okay if it takes time.
when your alone by yourself try use both names for you. or writte letters like some diary like stuff ending it with a name.
you might also have to ask yourself alot of question about the names ex:
is the name usual/unusual
is the name close to my bird name
if the name got more than 1 pronouce which would I prefer
is the name to be mistaken by someone ells
all those,
after a time I think you will get stucked more with one name.
I was stucked in 2 names, and it was very easy for me to decide because legally I couldnt have one of them,
however I ended up using the name I got now way more than the other I had in mind, so it also started to feel more natural.