Pat Kiewicz wrote:
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.

i noticed the different usage of the word than
what i expected it to be after i posted that.
so what i would call the lower back is the rump.


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.

clear white it is.


songbird