From there, I headed for the lower Rio Grande Valley where a Roadside Hawk had been sporadically seen at Frontera Audubon Sanctuary in Weslaco. Along Routes 359 and 285, I spotted many Crested Caracaras.
American Kestrels, Eastern Meadowlarks, a few Loggerhead Shrikes, and a group of Lark Buntings were also seen there along with one of my favorite raptors, a White-tailed Hawk.
Unfortunately, the gray skies and light rain made getting any decent photos a real challenge.
I drove into Frontera Audubon's parking lot and discovered that I had missed the Roadside Hawk by less than five minutes! It was upsetting to hear, "It just flew." I spent the rest of the day there hoping for it to return, but ended up driving back to Laredo empty-handed in the 'lifer' department.