A: It depends on where you live.
Normally for people that live in a climate similar to ours (Northern
California - Inland) I would suggest September as the best month.
You don't want anything to be
extreme; meaning the temperature variance between day and night. To be
safe I would start acclimating them around September 1; try putting them
out during the daytime for Week 1: maybe around 9AM (provided it is not
foggy, cold or windy), then bring them in around 4:00PM. Week 2: try 8:AM
to 5:00PM; Week 3 - 8AM to 6PM; Week 4: 7AM to 7PM. By October 1st they
should be ready stay outside full time, year around.
Depending upon the type of aviary
they are going into and the exposure it has to the elements; you always
want to provide an area that the canaries can fly to and get out of the
full sun. You would also want to protect at least 1 side of the aviary
from wind, so determine particularly in the winter months what direction
the wind comes from and shelter that side of the aviary, secured heavy
plastic would work very good. Or, you could place the aviary or cage near
an exterior part of the house or a fence. I would also suggest that the
top of the cage or aviary also be covered year around.