I took the data Lanny Chambers collected last year on
Rufous Hummingbird migrations and color coded arrival
dates in 8-day blocks. The results can be found at:

http://home.pacifier.com/~neawanna/humm/ruhu_usa2000.gif

Dark blue dots represent the earliest dates (early February)
and red the latest (mid-May or so) with turquoise, green,
yellow and orange in between.

For all the news:
http://home.pacifier.com/~neawanna/humm/map.html#bottom

--
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