Welcome to Our Blog

Hello, friends. This blog is where the El Camino Real Chapter, Texas Master Naturalists shares news, articles, and reflections. You’ll find our posts right under this introduction. We encourage your comments and likes, and of course, shares!

Texas Parks & Wildlife
AgriLife Extension

The Texas Master Naturalist program is sponsored by Texas Parks and Wildlife and the Texas A&M AgriLife Extension.

Our chapter meets monthly on the second Thursday of the month in the fellowship hall at All Saints Episcopal Church, 200 North Travis Avenue, Cameron, Texas. Presentations begin at 6 pm, after a potluck meal. All are welcome to attend.

Our Mission: To develop a corps of well-informed volunteers to provide education, outreach, and service dedicated to the beneficial management of natural resources and natural areas within their communities for the State of Texas.

Analyzing bird species statistics

by Sue Ann Kendall

Earlier this week, I worked on adding up how many bird species I observed at our Milam County property, the Hermits’ Rest last month. I keep notebooks that record the species I see and/or hear with help from Merlin Bird ID every day I’m at home. I was happy to have seen 126 different species as the migration season drew to a close. I was wondering if there was a seasonal pattern, because I intuited that the spring and autumn migration seasons would bring in more species.

Speaking of birds, I’m not sure if this sparrow nest addendum was on purpose.

I don’t remember exactly what I did, but somehow Excel asked me if I wanted an analysis of the data. Well, yes, I did, because data analysis using spreadsheets is not one of my skill sets. I had all kinds of questions that I’d like answered, like what were the most common species, which species have been here every month, etc.

Like, am I a bird?

Suddenly, BOOM. a new tab opened on the spreadsheet. It had all the answers. Something had analyzed my spreadsheet. Oh no, I found a use for AI! Damn! I couldn’t not look at the results. I really wanted to know.

Right on top, there was a summary of my ranch bird data:

The sheet is a month-by-species presence matrix: an X means a bird was recorded in that month. Coverage spans Dec-23 through May-26, with 2,804 total monthly presence marks. May-25 is the richest month (129 species); Jul-24 is the quietest (60 species). 18 species appear in every month, suggesting reliable year-round residents. 30 species appear in only one month, highlighting possible migrants, one-off observations, or rare sightings.

That’s all the stuff I wanted to know! To top it all off, there were tables and charts! Look at this.

I was wrong about the seasons. Winter, with all those sparrows, has the second most sightings, after what I expected…that spring gets the most.

This one is probably my favorite. I wonder, though, how we got so many species last June, when the previous June, July, and August were so low (and this June is starting off pretty slow). What I really think is that I need another couple of years of data to see these patterns better. Here’s another graph:

These are the 18 birds we see every month, with two that occur almost every month. I am not at all surprised at the species I see here. I wasn’t sure that Eastern Bluebirds were here every month. I don’t see them every day, but I guess they are here. Okay, one final fascinating thing.

These are supposedly the birds we’ve only seen once. That’s pretty interesting, but look! There are weird spellings on the birds, which I assure you are spelled correctly on the original spreadsheet. I probably shouldn’t have asked for a red border. I wonder what a Swalver is? And I think those last two are both Virginia Rails. But it appears only once on my list. I went too far and AI mauled my data.

What are my conclusions? In summary, AI is helpful upon occasion, but AI also is inclined to do weird stuff to the data. You have to keep your eyes open. Here’s the actual data of birds that were only seen or heard by Merlin Bird ID once. (This does not include a couple of obvious errors where the location got messed up or some other Merlin glitch happened; you’ve got to keep an eye on Merlin, too.)

  • American Golden-plover
  • American Tree Sparrow
  • Barn Owl
  • Bay-breasted Warbler
  • Black Capped Chickadee
  • Black Tern
  • Black-and-white Warbler
  • Black-necked Stilt
  • Boat-tailed Grackle
  • Canada Warbler
  • Caspian Tern
  • Chestnut-collared Longspur
  • Chuck-Will’s Widow
  • Common Raven
  • Crested Lark
  • Greater White-fronted Goose
  • Hooded Warbler
  • Indian Peafowl
  • Lark Bunting
  • Olive-sided Flycatcher
  • Pyrrhuloxia
  • Rough-winged Swallow
  • Semi-palmated Plover
  • Semi-palmated Sandpiper
  • Spotless Starling
  • Thick-billed Longspur
  • Tricolored Heron
  • Virginia Rail
  • Western Wood Pewee
  • Yellow-green Vireo

Dang, I’m ambivalent. But now I have some helpful insights about my bird data. I am pleased about that and look forward to continuing with monthly analysis and getting more information.

I was not quite so pleased when I sleepily ventured onto the screened porch to guzzle some coffee before my 8 am standup (once again it went 30 minutes over). I went to set my coffee down and spotted a snakeskin on the arm of my chair. You know I’ve lived here a while, because all I did was ask Lee if he put it there. Nope. I set the skin on my big turtle shell where it looks quite decorative.

It wasn’t a big one.

I guess the rat snake left the way it came in when it realized there were no birds or rodents to snack on. Ah, it’s always something!

Spider Chase

by Eric Neubauer

If you happen to be in Dickens, TX, and head west on US 82 toward Crosbyton, you will soon find yourself crossing the White River, where there is a highway rest area. This is no ordinary rest stop, because it’s connected with historic Silver Falls Park. A series of steps lead down to the White River from the parking area. About two-thirds of the way down there is a font off to the right with a dribbling pipe sticking out from the back wall. The font has settled a bit, and a trickle of water
flows across the bottom and down into a crack at the back.

I revisit the park periodically because someone else saw some large, unidentified wolf spiders there years ago. On May 28, I made another stop. I couldn’t use my headlamp until 9 PM because of the late sunset and then spent a futile hour looking for something interesting on both sides of the river. About a half dozen fireflies in one dark corner was the best I could find. Coming back up the steps while planning to leave, I looked to the left and saw a large wolf spider on the near rim of the font. I went closer and could see it was just what I wanted, and that it was a female with a lumpy abdomen. I tried to catch her, and she went down the inside wall to the back of the bottom. I stepped into the font and tried again. She went into the crack, and all I got for my trouble was some drips of water on my back and shoulders. It was obviously hopeless, so I went up the rest of the steps and to my car. Then I had to
go back just in case. There she was on the far side of the font. I knew she’d be heading for the crack at the bottom again and was able to head her off into another crack between the side and the back. It took a while but eventually I was able to gently pry her out with a small stalk of something. Then I got her into a container and took her to be photographed.

She had lost two of her right legs and only had a few spiderlings left, possibly the results of a single earlier incident. Whatever it was, it all had happened before I started chasing her. She turned out to be a Gladicosa gulosa, the first I ever encountered in person.

Mother spider

Wolf spider behavior is pretty easy to understand. When thinking with their stomachs, they jump on anything that moves. Faster than can be seen, they decide if it’s food than can be subdued or something else that isn’t. If the latter, they immediately disengage and prepare to run long before even considering taking a bite. Subduction begins by pinning its prey against its sternum with as may legs as necessary. A spider may end up on its back so it can use all 8. Somehow they can flip themselves back upright while holding prey. Only then does it grasp the prey with chelicerae and inject venom. When not thinking with their stomachs, various evasive maneuvers are used. This time, the female was doing all she could to run off with her remaining spiderlings. After photos I released her on the far rim of the font. She immediately ran into the font and partway down the side as if she knew exactly where she was.

Spiderlings

Where Are the Fritillaries?

by Dorothy Mayer

I was just about to think the fritillary butterflies weren’t going to show this year. (They lay their eggs on native Passion Vines and I’ve been trying to grow those vines especially for them.)  Last year the fritillary caterpillars ate my passion vines to the ground and I never even saw a bloom. This year, though, the passion vines have come back really strong and have multiplied like crazy. I’m hoping to see a bloom or two, but I’ll definitely settle for butterflies instead.

On a side note, I also planted some more passion vine in a different location. However, that passion vine must have been modified and the butterflies evidently knew that because they left those vines completely alone. I saw the butterflies flying around checking those vines out closely and noticed they never stayed long at all. Even though those vines were beautiful, I choose to stick with native plants, because our native wildlife require them to multiply, and I choose to share. 

Hint: I was thinking if you watch nature closely, you could come up with some great science ideas and experiments. 

A Squirrely Time of Year

by Terri Brickey

This time of year brings so much nature right to our front AND back door. Songbirds singing and flowers blooming. Hummingbirds dive bombing each other over ownership of the sugar water feeder. And snakes, spiders and other creepy crawlers around every corner and under your feet. But every year about this time I also get a fun surprise from that pesky critter, the squirrel. I have A LOT of squirrels. Mostly Eastern Fox Squirrels. They entertain me as much as the hummingbirds. Always finding ways to get their share of bird seed from the feeders.

I put up a corncob wheel spinner and they don’t have any trouble getting that corn.

I had one in Florida and those squirrels would jump on and spin round and round, even getting thrown off trying to get it. But they weren’t as large as Texas squirrels.

Last summer I had this fellow show up.

I had never seen jet-black fur on a squirrel. I put it on iNat and no one made a peep about it. I looked it up to find out that it is the result of a rare genetic mutation causing excess pigmentation and that the odds of seeing one are estimated at only 1 in 10,000!

Then just today I was heading back to fill a deer feeder and passed a bird house with a cute little guy with big black eyes starring out at me. Baby squirrel, I thought, and grabbed my phone but only got pictures as it climbed the oak tree.

Once I got back inside and looked at the pictures, I found, to my surprise:

A Southern Flying squirrel!

I had never seen one. Research told me that they are mostly found in the eastern portion of our state, where mature hardwood forests are more common. They rely on natural tree hollows or old woodpecker cavities, or I guess an unused bird box for nesting. Their diet is omnivorous and includes nuts, seeds, fungi, berries, insects and probably the same treats I leave for my birds and ground squirrels. They can breed up to twice a year producing small litters of 2-6 young. And because of their nocturnal habits and small size, flying squirrels often go unnoticed by humans. I probably woke this guy up.

I am going to have to keep an eye out for them and my camera ready, as my husband said he wants proof of the flying action.

Until then, I’ll be hanging out.

Terri Brickey

Grey Havens Farm