Most of the things we learn to count on aren't always good
things -- death and taxes, being two of the more unsavory
examples.    This is the eighth year that a Canada goose -- we
believe it's the same one because her habits are the same -- has
used the overhang to build her nest. It is well protected by
redwood trees and hard to spot, which is another reason we think
it's the same goose.  Staff Archives: A mother goose and her
hatchlings on the roof of the Contra Costa Times building in
Walnut Creek, Calif.,on Thursday, April 5, 2012. Staff Archives:
A mother goose and her hatchlings on the roof of the Contra
Costa Times building in Walnut Creek, Calif.,on Thursday, April
5, 2012. (Doug Duran/Staff Archives)  The roof has a wealth of
nest-building materials and she gathers them into a neat pile
and uses her own down and feathers to line it, keeping the eggs
warm and protected. Mother Goose will spend the next four weeks
sitting on the nest with only an occasional break. The anxious
dad stands guard nearby.