Following up on Dan Jones' report from yesterday of a Glaucous Gull at the mouth of the Rio Grande in Mexico, and a Little Gull in the USA, I headed to Boca Chica Beach this morning. I arrived at about 7:45 and quickly found the Little Gull sitting on the south side of the river in Tamaulipas. My efforts to digiphone were thwarted by bad light (haze and strong sunlight) and the truly 'little' nature of this bird. Little Gulls like to sit with small gulls and terns, and this bird was at the back side of a large flock of Forster's Terns. Unfortunately, the river's edge was lined with Herring Gulls, Brown Pelicans, and other birds that easily blocked the Little Gull. Fishermen flushed the birds several times, and I could not relocate the Little Gull.
I spent some more time at the river mouth, and the Little Gull flew by me so close I didn't have time to get the camera up. I tried to find the bird to no avail - until I looked at the Laughing Gulls next to me! There was the Little Gull, undecided whether to hang out with the Laughing Gulls or peck at things with the Sanderling.
I drove north along the beach, and 0.3 miles south of the beach crossing I saw some fishermen cleaning their catch ... and the Glaucous Gull was mooching fish from them. I went over to get some photos, and watch the big Glaucous Gull mostly dominating the smaller gulls. One Herring did steal his fish carcass, but the Glaucous quickly claimed the next one.