"Extremely large; bill deep-based and massive; thin feathers of neck very long and shaggy ...." (Donald & Lillian Stokes. The Stokes Field Guide to the Birds of North America, p. 508)

"Uncommon. Habitat varied from tundra to coniferous forest to arid brushland ...." (David Allen Sibley. The Sibley Field Guide to Birds of Eastern North America, p. 288)

"Uncommon to common resident in the mountains of the Trans-Pecos and east through the Edwards Plateau. This species is a rare winter and casual summer visitor to the High Plains. Vagrant Common Ravens have been noted in the Rolling Plains, South Texas Brush Country, and Blackland Prairies. Perhaps the most unexpected record was one discovered at Galveston in November 1998. Almost all reports of the species east of its normal range are from the winter." (Mark W. Lockwood & Brush Freeman. The TOS Handbook of Texas Birds, p. 143)

This is a very uncertain identification & I have not added this bird as a distinct entry among the attested species. Compare this individual with a more certain crow.

In response to an inquiry on TX-ORNITHOLOGY, one person wrote:

"Not quite a good enough picture but the beak seems to be more ravenish.
There are a fair number of records of ravens on the utc of both species with
birds at high island, Quintana and sabine."

and another

"Sure looks bulky for a crow especially the neck...."

So it may be a Raven.

Photo taken with a Nikon D300 using a Nikon 400mm, f/5.6.

April 27, 1013.