ID question for the experts

["Eric Huish" <poorwill_ at hotmail dot com>]

Hi, I've got some hummingbirds in my yard.  They have a buffy wash on their 
flanks, little rufous in the tail and when perched they have wingtips that 
reach just beyond the tail. I can't see that the bill is any shorter.
In my books it says that the calliope hummingbird has wingtips longer than 
the tail. I was wondering if someone more familiar with calliope and rufous 
hummingbirds could tell me how good of a field mark that is.
Are juvenile rufous hummingbirds smaller than adult females?  Could a 
juvenile rufous have wingtips out past the tail?
Any additional suggestions on telling the two apart would be great.  Thanks.

Eric Huish
850 E 100 N
Pleasant Grove UT
poorwill_@hotmail.com
785-3478


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