It seems that technically there is not really a Victorian
house, as it would really be a house from the Victorian era.
But there are variety of elements that recall Victorian era
architecture that many makers of birdhouses have chosen to
include in their Victorian birdhouses. You can find them as
one, tow or three story homes. Many will have the familiar
octagon or round shaped tower as the dominant feature, often
with a porch that wraps around the tower.
These homes could be found in the US and Canada, but the
elements of the style were borrowed from every nation and
many eras in history. The styles varied across the country.
The most common Victorian style is often referred to as Folk
Victorian. Many of the classic styles were built by the
wealthy who had access to architects. But the the common man
often wanted a Victorian style home and would design the
house themselves. Often these designs weren't classics but
still had a charm of their own, while tending to be on a
smaller scale.
Victorian Birdhouse Video
And here is a video of the
ultimate Victorian Birdhouse.