One highlight was the Altamira Oriole and nest seen at Estero Llano Grande State Park. The Altamira Oriole is only found in the Rio Grande Valley in the USA, and this conspicuous nest made for an easy sighting:
The bird itself was a bit harder to photograph. It made a couple of brief stops on the wire and then flew off. As a result, I only ended up with a few blurry shots, but it is enough to see its vibrant orange coloring, extending to its median coverts, along with the black facial markings.
While the photos were not spectacular, the bird certainly is!