[[They could also identify as being male or female, or even being agender or gender fluid. /shrugs/]]
I know of many folks that keep Bonnie agender! c:
But anyway you identify ‘em is no big deal, at least to me! I suppose having a set gender tends to be easier for folks when referring back to a character ('he’/'she’ being used to refer to a single person vs. 'they’ which is technically used as plural and refers to more than one person). :)