Cascadia Hummingbird Report - 5/23/2001

The number of new Rufous Hummingbird sightings has dwindled to
a trickle.

Bear Valley Springs, CA 04-17-2001 107 35.151 118.6285
Ardrossan, ALB 05-09-2001 129 53.3300 113.0800
Dorris, CA 05-17-2001 137 41.9937 121.8966
Calgary, ALB 05-20-2001 140 51.0000 114.0500

I put together a 3-dimensional trend map with all of the data
points up through last week. If nothing else, it's very pretty.
The majority of data points seem to fit a west to east model for
hummingbird movement. The points in Colorado, however, suggest
that those birds arrive directly from the south, possibly up the
Rio Grande.

http://home.pacifier.com/~neawanna/humm/ruhu2001_mr.html

I will continue to update the first detection maps at least through
June, but will be discontinuing weekly Cascadia Reports with this
report.
--
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