I would have never expected Snape to have a doe Patronus either. Additionally, I wouldn’t expect Dumbledore to have a phoenix Animagus form. Although I suppose if anyone had a phoenix as their Animagus it would be him; he is a master of transmutation.
There are not many data points to consider. In canon, there were only 7 registered Animagi in the entire century (though hilariously four unregistered Animagi canon!Harry knows about). At such a low sample size it could be coincidence or just the simple matter of liking an animal so choosing it as both your Animagus and Patronus form. I do weight my quoted theory as marginally probable, maybe 70% at best.
I would expect that if Snape became an Animagus, he would not turn into a female deer.
I would have never expected Snape to have a doe Patronus either. Additionally, I wouldn’t expect Dumbledore to have a phoenix Animagus form. Although I suppose if anyone had a phoenix as their Animagus it would be him; he is a master of transmutation.
There are not many data points to consider. In canon, there were only 7 registered Animagi in the entire century (though hilariously four unregistered Animagi canon!Harry knows about). At such a low sample size it could be coincidence or just the simple matter of liking an animal so choosing it as both your Animagus and Patronus form. I do weight my quoted theory as marginally probable, maybe 70% at best.