Just high enough to see over anything between you and the bird. -
Didn' t know where in Texas you were, so I picked the middle of the state: Abilene
From there, the 43° west bird has an elevation of 19,4°
and measured by the compass, it's azimuth is 102.3°
So, if you have a pretty clear view in the direction of the satellite, with no tall obstructions, ya might see it.
If there is a real question, use the soda straw inclinometer (below) and check your clearance.
There are a number of useful satellite calculators, including the one at the top of this page in TheList, and
GeoSatFinder, both of which are great to get your bearings.
ThisBUDsForYou and his soda straw inclinometer
http://www.satelliteguys.us/free-ai...a-straw-inclinometer-line-sight-pictures.html
Delta Charlie had some variation on the idea, too
http://www.satelliteguys.us/free-air-fta-discussion/146479-15-min-duct-tape-elevation-gauge.html
edit: oh, I see Brian beat me to the punch while I was fiddling around looking for my links.