A real Texas specialty, this endangered warbler is best found in the Hill Country. Photo by Josh Engel.

These beautiful flycatchers are a common roadside site across central Texas. Photo by Josh Engel.

Big Bend is a great place to see this beautiful jay, that occurs only in a very small area north of the border. Photo by Josh Engel.

There's a small population of Black Bears in Big Bend's Chisos Mountains, but seeing them takes some luck. Photo by Josh Engel.

Photo by Josh Engel.

There are few wetlands along this birding route, but those few wetlands are used by lots of birds. Photo by Josh Engel.

White-tipped Doves have been slowly spreading north from the Rio Grande Valley, and are possible along this tour's route. Photo by Josh Engel.

Springtime brindgs out the butterflies. Photo by Josh Engel.

Photo by Josh Engel.

Photo by Josh Engel.

The Big Bend area is good for finding this beautiful bunting. Photo by Josh Engel.

Omnipresent in central Texas. Photo by Josh Engel.

Photo by Josh Engel.

Photo by Josh Engel.

Photo by Josh Engel.

Big Bend is rocky. Photo by Josh Engel.

Photo by Josh Engel.

Photo by Josh Engel.

Photo by Josh Engel.

One of several "Lower Rio Grande" specialties that occurs on this tour's route. Photo by Josh Engel.

One of Big Bend's most sought-after birds is the beautiful sheartail called Lucifer Hummingbird. Photo by Josh Engel.

Photo by Josh Engel.

Chisos Mountain Lodge is nestled in these rugged mountains. Photo by Josh Engel. 

The Northern Cardinal's desert-dwelling cousin. Photo by Josh Engel.

Photo by Josh Engel.

A common bird of the Chihuahuan Desert. Photo by Josh Engel.

These obscure flycatchers breed in the woodlands of Central Texas. Photo by Josh Engel.