The above example of camouflage in the the animal kingdom is courtesy of the Common Pauraque. A resting pauraque looks very much like a pile of dirt and leaves. During the day, they rest on an open place on the ground and remain very still so predators will have trouble detecting them. Females also build their nests right on the ground and rely on camouflage for protection.
The particular bird in the above picture was pointed out to me by a tour guide at Estero Llano Grande State Park near Weslaco, Texas. He roosts in the exact same place everyday, so has been photographed by many birders. I even saw his picture in the February 2015 issue of “BirdWatching” magazine.
The guide gave us a good tip on finding roosting pauraques – they often roost on the ground among shrubs where there are a lot of leaves. However, they don’t like to walk much (they have tiny legs) and their wingspans are about a foot and a half wide. So, they will generally be found roosting in spots they can get to by flight. Due to their wingspans, they will be found roosting in areas with suitable flight paths (over a foot wide) leading to them.
Common pauraques are in the nightjar family (Caprimulgidae), which is a family of nocturnal/crepuscular insectivorous birds that generally hunt their prey on the wing. Common Pauraques occur from southern Texas to central South America in woodland areas that have some open areas nearby for foraging. They do rely on their sight while foraging, so they are most active at dusk, near dawn, and on moonlit nights. They do most of their foraging on the wing, but can also jump from the ground to catch insects, and they may run a bit on the ground (despite their tiny legs) to catch insects.
Estero Llano Grande is a good place to see Common Pauraques. I saw a second one fairly close to the first one that was pointed out to me.
Estero Llano Grande is considered a birding ‘hotspot’ due to the wide variety of habitats found there. It’s also a good place for butterflies. Here are a few more pictures of wildlife I saw there:
There are several bird feeders around the visitor center, where quite a few different birds (such as green jays, inca doves, and black-crested titmice) could be seen. I managed to get a picture of a northern cardinal. They’re beautiful birds that I don’t get to see very often.
There were also plenty of hummingbirds visiting the hummingbird feeders. Most of them were buff-bellied hummingbirds, which can be found in the US along the Gulf Coast. In the US, they breed in southern Texas, but some of them migrate a bit north for the winter and stay along the coast in Louisiana, Mississippi, Alabama or Florida.
Hummingbirds can be very interesting to watch. Despite their tiny size, they can be quite territorial and often chase each other from feeders or flowers.
There’s a large viewing area by the visitor’s center where one can watch birds at a large wetland. Quite a large variety of waterfowl and wading birds can be seen there, including coots, ducks, ibises and egrets. The bird in the above picture, an American coot, looks somewhat like a duck but is actually in the rail family. Note the strange-looking feet – they are not webbed and the toes are lobed.
The ducks were also interesting to watch, as many species actually pair up on their wintering grounds, and a few males were already courting females. That’s what the Gadwall in the above picture is doing, although the female gadwalls are out of frame.
There were about seven Yellow-crowned Night Herons around “Alligator Lake.” And yes, I did see a few alligators:
Great Kiskadees were quite common. The only place to see them in the US is the far south of Texas, but they are very widespread and common in Central and South America. They can often be found perched on branches near water bodies, where they will repeatedly fly out to capture an insect or small fish.
Above is a Black Phoebe. Like the Great Kiskadee, they often perch on branches near water bodies and fly out from the branch, grab an insect, and then fly back to the same or a nearby perch.
Like the Great Kiskadee, the Altamira Oriole is a south Texas specialty. They are striking, black and orange birds that occur in Central America, Mexico, and the far south of Texas. The above picture shows an Altamira Oriole nest.
I would have liked to see the actual birds but didn’t get a chance that day. However, on the last day of my trip, I went to the Rio Grande National Wildlife Refuge, and saw one just as I was walking back to my car. He was even nice enough to perch still so I take his photo: