Dynamic Adaptaion

Tuesday, February 16, 2016

One of the most fundamental and essential aspects of life is the ability to dynamically adapt to changes in the surrounding environment. Something just over a year and a half have elapsed since the last post was added to While on a Walk. The time has come to slowly resume the Walk.

The original intent of this blog as stated in its mission was and still remains: "The photographs in this project are about the sky, the earth, the plants and animals, and about the experience of being in their presence, the experience of their spirit, the experience of wonder and awe and delight. They are intended to be catalysts for contemplation, for leaving oneself open to allow wonder and delight to take hold and mature."

The only text I will include in posts going forward will be limited to the general location and any supplemental information needed to give the photographs a context. If the viewer is interested in flora and fauna identification beyond any included in a post, feel free to do your own research. In the meantime, leave yourself open to allow wonder and delight to take hold and mature, to appreciate the Earth for all its own innate beauty and spirit:

This set of photographs was taken on a walk yesterday, Monday, February 15, 2016, along the same section of the San Antonio River Mission Reach downstream from the VFW Blvd trailhead where I left off in the last post on July 9, 2014.

It was a rather warm, but beautiful mid-winter day. From the high cirrus clouds to the sky blue reflection on the surface of the river water, the river was as magical as ever.

As discussed in the July 9, 2014 post, this is the river healing and renewing itself. Continuous erosion and deposition dynamically reshape the channel. Black Willow, dormant for the winter, both stabilize the river bank soil and provide a perch for numerous smaller birds. Pairs of American Wigeons were abundant and actively feeding in the shallow areas of the river. And, of course, there are many more photos from this walk for future posts.

Springing Back to "Normal"

Wednesday, March 20, 2013

San Antonio River, Mission Reach, Padre Park Trailhead,
between the embayment upstream and downstream
beyond San Juan Dam and into Padre Park

Today's photos:

The first day of Spring blew in with the arrival of another cold front, dropping the temperature back to a seasonally "normal" range. There is a pattern to these temperature fluctuations that has a lot to do with the topography of the region. It really is predictable.

As a cold front approaches from the west or northwest, the wind ahead of the front shifts, coming from the west or southwest. Wind from those directions blows off the mountains of West Texas and Northern Mexico, so it is a downsloping wind that heats up as it descends off of the mountains. This is known as the downslope effect. Thus, two days or so before the arrival of a cold front, temperatures "normally" get unseasonably warm (hot).

Anyway, hot or cold, what better place is there to celebrate the first day of Spring than the Mission Reach of the San Antonio River?

• The first photo is a Pipevine Swallowtail. This butterfly was skimming across the ground, constantly beating its wings as swallowtails typically do. It never did perch, so I took a lot of frames hoping one might come out sharp enough to post. Fortunately, I was able to get this photo with its wings fully spread open.
• The second and third photos are a Double-crested Cormorant that has just caught a fish.
• The fourth photo is a Black-bellied Whistling Duck.
• The fifth photo is a Great Egret. There were a lot of birds flying along the river channel today.
• The sixth photo was taken looking upstream from San Juan Dam. The brand new pavilions at Mission County Park can be seen on the very left edge of the photo. The large building on the right side of the photo is the old hotel building at the Hot Wells Resort that was very popular in the early 1900s. Apparently, President Teddy Roosevelt did visit this resort on his trips to San Antonio.
• The seventh and eighth photos are a cluster of Coreopsis. The eighth photo is a closer view of the same plants in the seventh photo. If one looks closely at the top most flower in this close up, there is a Banded Hairstreak enjoying some nectar from the flower. The color pattern around the center of these flowers is very distinctive. I have been trying to determine which species these might be, but can't find any Coreopsis photos that precisely match this particular pattern.
• The ninth photo is an overview of the river with a Great Egret standing on the edge of the embayment on the west side of the river upstream from San Juan Dam. All I could see from this vantage point was its long neck and head.
• The tenth through the thirteenth photos are an American Wigeon (Anas americana). This duck is a close cousin of the Northern Shoveler (Anas clypeata). When seen from a distance, it is easy to mistake one for the other.
• The fourteenth photo is, the best I can determine, a Fiery Skipper on a blade of grass. I have come to the conclusion that the skippers are to butterflies what sparrows are to birds; very difficult to identify one species from another. I think the only hope at "camouflage" this skipper has in this location is that maybe a predator would think it is a bright orange flower.
• The fifteenth photo is some high cirrus clouds that followed the cold front in the jet stream.

Stream of Consciousness, Part 2, A Sun Dog Appears

Thursday, December 6, 2012

These photos are a continuation from my walk yesterday in South Side Lions Park. Adding to the dream-like quality that I mentioned in yesterday's post, was the appearance of a sun dog, scientifically known as a parhelion (second and third photos). Instead of a rainbow, I guess this could be referred to as a "cloudbow":

Stream of Consciousness, Part 1, An American Wigeon and Beyond

Wednesday, December 5, 2012

Salado Creek Greenway South, South Side Lions Park Trailhead,

paved and natural surface trails

Today's photos:

My walk today was absolutely beautiful. While I was walking, the reality was palpable. As time has past, however, the experience has taken on an increasingly potent dream-like quality.

It is worth mentioning here that the American wigeon is one of the migratory ducks that winters here in South Texas. Its appearance is another reminder that winter is not far away.