I do remember hearing how hard WNV is on corvids (jays, crows, ravens...) not large birds in general, but according to the CDC dogs may not be affected at all, similar to humans, who rarely develop symptoms.

it hit the blue jays here hard a few years back. We haven`t gotten very many calls about dead birds this year, usually when something is on the news about west nile they always mention birds, then for the next few weeks anyone that find a dead bird seems to call the poison control center.
Tally Ho!