Winter warblers trend graphs tweaked

Mike Patterson celata at pacifier.com
Sat Jan 12 13:19:50 PST 2002


I spent a bit more time with the warbler data (it's raining),
adjusting for the number of counts conducted. The adjustment
had almost no effect on the Townsend's Warbler trend, but
flattened the Orange-crowned Warbler graph to statistical
insignificance.

This would suggest that apparent Orange-crowned Warbler increases
are almost certainly an artifact of effort.

http://home.pacifier.com/~neawanna/neotrops/cbcwarb.html


--
Mike Patterson When I despair, I remember
Astoria, OR that all through history
celata at pacifier.com the way of truth and love have always won.
There have been tyrants, and murderers,
and for a time they can seem invincible,
but in the end they always fall.
Think of it...always.
- Mahatma Gandhi

http://www.pacifier.com/~mpatters/bird/bird.html


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