songbird said:


this bird has a definitive white rump (underneath)
i don't see any other markings when it flips it's
butt up to poo.

That part is called the 'vent' or 'undertail coverts.'
The 'rump' is above the tail.

See:
http://www.infovisual.info/02/053_en.html


does the red tail have other markings on the butt
from underneath?

The dark morphs will be dark, the light morphs usually
clear white.

--
Pat in Plymouth MI

"Yes, swooping is bad."

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