A brief history of the Christmas Bird Count and a description of its methods are given at this Wikipedia webpage:
http://en.wikipedia.org/wiki/Christmas_Bird_Count
More information is at the Audubon website:
http://birds.audubon.org/christmas-bird-count
Further information relating to CBCs in Canada is here:
http://www.bsc-eoc.org/volunteer/cbc/index.jsp?targetpg=cbcparticpate&lang=EN
The Sunshine Coast CBC is usually held on the first Saturday on or after after 14 December.
Files containing local CBC records are below. Click on the thumbnail to open a file.