Day 4: Sheldon Lake State Park
© 2025 Alamo Birding Services LLC
By Mary Beth Stowe
It was indeed raining the next morning (and really blowing the night before), so I actually got to have the "real" breakfast before settling down to work on file processing! The initial forecast was heavy rain up till 11:00, but after an hour that drastically changed, and by 8:00 it had cleared up enough (with no heavy rain thereafter) to head on up to Garrett Road! Again, the beltway was a breeze, and after getting off on Garrett I quick-like got some ice (it melts in a hurry) and then headed down to the "boat ramp". It really wasn't a "boat ramp", but rather a huge parking area abutting a cypress swamp that rivaled anything in Florida — no wonder the Limpkins like it! I parked at the far end and set up shop (already several fishermen were at the other end, close to the road), and was wondering what all these red splotches on the cypress trunks were when it dawned on me (upon closer inspection) that they were the Apple Snail eggs! Again, no wonder the Limpkins like this place! And I didn't have to wait long, either: shortly one came sailing in, yelling as he did so, and landed right on the edge of the parking area! Another one came in shortly thereafter and chased the first one, and he was practically at my feet! Kay had confirmed where the babies had been, but when I went over to check, I couldn't find any — I suspect they're fledged by now. Besides the Limpkins (which really performed well, both on top of trees and close by) I was able to film a female Red-winged Blackbirds on the nest (and later poking around the ground with a missing foot), plus a pair of Great-tailed Grackles strutting around the joint. The first Neotropic Cormorant of the trip flew overhead, and somewhere what I suspected was a Great Blue Heron nest was hidden, as I could hear babies squawking. [Update: They may have actually been Cattle Egrets, as while in the process of creating video grabs, I caught a couple sailing by in the background of one of the Limpkin videos...] A Green and calico Little Blue Heron also came wheeling in, but closer to the road, and I didn't want to get too far away from the car. A ranger made the rounds with a bucket, picking up trash, and we got to talking about the Limpkins, which were "all over the place" now, according to him, and reported that birders all the way from Austin came in to see them (and a lot further than that, I'm sure, when they were first reported)! Purple Gallinules called but wouldn't come out, of course, and after about an hour a guy pulled up and got on his phone, so I figured it was time to move on. After I packed up I jokingly said to him, "Your turn!" which got a chuckle, and it did indeed look like he was preparing to fish right where I was!

Cypress swamp at the "boat ramp"; that brown clump on the right was apparently where the baby Limpkins were hanging out.

All those pink masses on the cypress tree are Apple Snail eggs!

Limpkin that landed feet from me!

It's hard to maintain balance on those tree tops!

Cameo appearance by Cattle Egrets...

Footless female Red-winged Blackbird (don't know if she's the same one on the nest, but I wouldn't be surprised...)
Headed into the state park proper, where I dutifully got a pic of the entrance sign, then proceeded to crawl along the two-mile entrance road to the main part of the park. Once again you could hear the Limpkins, and a White Ibis fed in the grassy wetland. It was lovely prairie habitat with some woodland, and at one creek crossing a Great Egret fished, and a female-type Painted Bunting popped up!

Self-explanatory...

Prairie wetland

Culvert

Roadside pond with Great Egret (also below)


Female-type Painted Bunting

Pine savannah

White Ibis
Pulled into headquarters where I apparently didn't need to check in, as the gal said it was a free park! So she gave me a map and I figured out a strategy; all the trails basically started from there, but they all looked relatively short and easy, so we went back to the big parking lot and tackled the Prairie/Wetland Loop. Cliff Swallows were all over and once again Seek came to the rescue by IDing some of these wetland plants (although the interpretive signs hit most of them anyway): most prominent was the purple-flowered Pickerel Weed, but some things it would only narrow down to genus (Arrowweed and either a Chive or a Sage —it couldn't figure out which). I found a "lookup" option in Seek for the "sage", and it came back with Tall Flatsedge, but I think that was a different plant in the same picture!

Start of the Prairie/Wetlands Loop Trail

Heading to the wildlife viewing platform overlooking the Wetlands Loops

Pickerel Weed
Arrowhead
Spikesedge

Plains Coreopsis
A Swainson's Hawk circled several times, three Caracaras in a distant tree were good for an artsy video, a couple of Dickcissels sang from the field, and I couldn't believe my ears - a Kiskadee was calling from the woods (and didn't get flagged, so I guess they're somewhat regular here now)! I guess the place is a restored prairie/wetland project, with the purpose of showing what the Houston area looked like before urban sprawl! A Scissor-tailed Flycatcher flew across the trail, and where the trail looped back past some picnic areas, a Tawny Emperor landed on a plugged-up birdhouse...

View from the observation deck

Scene with the Observation Tower

Affectionate Caracaras in a pine

Swainson's Hawk

Female Tawny Emperor
Back at the car I was ready for a PBJ Bagel, so we swung back to the little lot near headquarters, had that, then tackled the Pond Loop Trail. A big guy with a big cross around his neck had his little boy with him, and they went to fish at one of the docks while I checked the other wetlands, which looked like high potential for Purple Gallinules with all the water lilies, but they were actually quite birdless. But lots of other critters showed up: what was probably a nymph slant-faced grasshopper of some kind tried to blend in with a big blade of grass, and a young Great Blue Skimmer finally cooperated for at least an ID photo, but the highlight along this stretch was a beautiful rusty-colored snake that actually stayed still long enough for me to get video (had probably just eaten)! Best match seems to be the Broad-banded Water Snake (and Seek agreed, although it was at a loss regarding the grasshopper; it thinks it's a katydid…) [Update: Once again the BugGuide guys came through and ID'd it as a Glassy-winged Toothpick!]. The dominant butter along the trails was the ubiquitous Carolina Satyr.

All loop trails start from here

Pond Loop Trail

Yellow-crowned Night Heron on the trail

The first pond - this place used to be a fishery before TPWD transformed it into an environmental learning center!
American White Waterlily

Glassy-winged Toothpick Grasshopper

Broad-banded Water Snake

Carolina Satyr

Immature Great Blue Skimmer
After resting at the end of the trail I was debating about doing the whole loop via the Swamp Rabbit Trail or just heading back and doing that tomorrow, as I was really starting to get winded. But the rest helped, and I continued on as planned, as I really wanted to cover the place and head on to Mustang Island the next morning. No way was I going to tackle that 60-foot observation tower, but I did go up the ramp to where the not-working elevators were and rested again, getting a Yellow-crowned Night Heron and a singing Cardinal out of it (to say nothing of a nice view of the prairie). Back in the woods a Carolina Wren hopped around a trunk, and I got a kick out of these "story signs" they had posted here and there about a turtle (and I did get some video of a Red-eared Slider with his big foot hanging out)! On the last covered fishing deck several Bullfrogs were croaking, and by a miracle I actually spotted one in the act and was able to get video! (I think I scared the dad and kid getting ready to come on deck when I exclaimed to no one in particular, "I got 'im!") There were also several of these little water beetles swimming and mating on a stick (Kaufman's insect guide came through and ID 'd them as Whirligig Beetles), while an Eastern Amberwing claimed a nearby perch.

Swamp Rabbit Trail

View of the prairie from the lower deck of the 60-foot tower


Cardinal challenging an unseen rival

Back on the Swamp Rabbit Trail

Red-eared Slider

Kinglet Trail (check out the placard - lower right)

Carolina Wren

Eastern Amberwing

American Bullfrog in mid-croak

Whirligig Beetles
I was really getting heated by then, but a nasal “ca” got me down the road, and was able to at least glimpse the Fish Crow! A Blue Jay was also calling but wouldn't come out, so I finally decided to wrap it up and head back to the hotel, and conferring with The Boss (Keith), he agreed that it would be good to head on to Mustang Island. Filmed another White Ibis and Little Blue on the way out (this time the Narrowmouth Toads were providing background music), and on the way back to the hotel (and Siri sends you along the frontage road going back) had a Red-tailed Hawk fly up on a post! Since we wrapped up early, we celebrated the Limpkins with a wonderful early dinner at Longhorn Steakhouse! As an aside, what's surprised me to no end is the lack of mosquitoes; I would think with all the rain and the hot, humid conditions (especially around a swampy wetland area like these parks have been), there would have been tons of 'em! Not complaining, mind you...

Picnic area where the Fish Crow was

White Ibis downs a juicy morsel (looks like it might be a giant tadpole...)

Little Blue Heron

Woodland savannah on the way out









