is teri in baby reindeer trans

Yes, Teri is a female reindeer. As for whether or not she is transgender, that is not a topic that has been specifically addressed in any official Christmas story or canon. So, I cannot say for sure whether she identifies as transgender or not. However, it's worth noting that Christmas Reindeer is an inclusive and accepting community that celebrates diversity and individuality. So, if Teri did identify as transgender, she would certainly be supported and welcomed in this community.