from btn "Originally a masculine name, since the mid-1970s this has more frequently been given to girls."
Many of us were not around before the mid 1970s and certainly not at the turn of the 20th centry to witness one of two famous male Aubreys. Several of us have girlfriends or aquaintances that are
Aubrey. Some seem to know a modern male
Aubrey, but if you don't, the sound of the name is much more similar to
Audrey than to
Alberic. The -ey ending in general is mostly used with feminine names these days anyway.