I spent some time this morning overlaying the Columbia
and Fraser River watersheds on this years Cascadia reports
for Rufous first detections.

The correlations between Rufous Hummingbird breeding
range, first detection sequences and the big rivers of
Cascadia may be purely coincidental, but it is interesting...

http://home.pacifier.com/~neawanna/humm/watershed.html

--
Mike Patterson Alas, to wear the mantle of Galileo,
Astoria, OR it is not enough to be persecuted
celata at pacifier.com by an unkind establishment,
you must also be right.
---Robert Park
http://www.pacifier.com/~mpatters/bird/bird.html