Thunderbird?

What is the strange creature flying around San Antonio?

From KENS-TV:

Strange sightings of a huge flying creature have been reported as recently as six months ago. Is it a monster or myth?

Guadalupe Cantu III was busy working his newspaper route, but he says the big news of that day 10 years ago flew right over his car. He says he's seen what most have not — an unidentified flying object, one that still scares him.

"We were afraid that it would come at us. So we stayed in the car till it passed this way," witness Guadalupe Cantu III said. "This thing's all feathers, all black. Much bigger than me. It looked at us. It had very stooped-up shoulders." The beast has been spotted from the Rio Grande Valley to the mountains of New Mexico.

Could it be a thunderbird? A condor? Or something else?