Copperhead

Copperhead, Agkistrodon contortrix

The very well-known, and misunderstood Copperhead is a common venomous snake found in most Central and Eastern states. In North Texas at the least, if there is a story of a venom-filled snake bite, this is the likely culprit. The reason has nothing to do with temperament, but rather environment. The Cottonmouth, also known as the Water Moccasin, is a semi-aquatic snake and therefore is found near streams or ponds. Rattlesnakes can survive a variety of habitats as a subfamily, but individual species often have strict specifications. The Copperhead is the most versatile of the three front-fanged venomous snakes in the area. Their beautiful leafy pattern and brown coloration provides excellent cover when slithering among the leaves, whether at a nature preserve or a simple backyard; however, of the three snakes they are one of the most laid back. As with any animal, snake or not, any provoking will result in retaliation, even a simple gesture of grabbing a rake next to the near-invisible snake.

The issue lies in the commonality of this snake in urban areas, and the lack of education on common snake safety. Snakes will follow the mice which will follow the human, which means you may easily find a Copperhead hanging out near the garden hose. With the warm winter the majority of the United States has experienced this past year, mice populations have exploded beyond normal which also means more frequent snake sightings. The phrase "look before you leap" applies to snakes in that you should always look before you step over a log, grab your gardening tools, or even kick aside a branch. Always remember, you can never selectively kill one species, and they have an important job in nature, one that is critical this year especially if you want to avoid Lyme disease.

The lack of respect snakes get, especially if venomous, has always been a sore issue with me. More often than not, someone will either kill it or suggest killing it. Any encounter the public has with a venomous snake is exaggerated, with talks of how the snake would easily have attacked or how the snake actually chased them. Discounting the fact that a small snake chasing a grown man triple his size is ridiculous, the most important myth is the assumption that if it is a venomous snake, then it obviously is aggressive. I can tell you from personal experience with Copperheads that I truly mean it when I say they are generally pretty mellow. After literally almost stepping on a relatively large one (he moved to avoid it which is how I noticed, still I was in striking distance) and not even getting a threatening pose, I stand by that. The one in the photo and a different one earlier this week were smaller, and didn't particular care to be moved off the trail, but also did not coil for strike either. This was done, of course, with previous training on how to handle hot snakes.

As you can likely tell, this simple picture from my phone, from the second Copperhead I've seen in less than a week (quite common in my line of work) was just what I was waiting for. I was so excited by this as I actually had a phone and no concerned patron with me so whipping out my camera was acceptable. I couldn't wait to finally have a chance to clear up the misconceptions of these snakes! I really hope I did.

Texas Brown Tarantula

Texas Brown Tarantula, Aphonopelma sp.

The tarantula is easily recognized due to the large size as it is the heaviest spider by weight. The size alone often pegs them as dangerous, but no direct fatality has been recorded from the bee sting-like bite. Their true threat is the more likely attack of irritating urticating hairs which can be dislodge at the attacker. Truly quite docile, there are many tarantula species kept as pets. In Texas, and likely other places as well, spring brings migration as males wander to find females for mating. The main predator of the tarantula is the Tarantula Hawk, which immobilizes her prey, and lays her eggs inside for the larvae to eat their way out of the still living spider a few days later. The tarantula hawk is on record for having the greatest instantaneous pain in humans though the toxicity itself is low.

Perigree Moon

Perigree Moon of May 2012

Referred to by the media as "Supermoon", the event of a week ago presented a full moon coinciding with a close approach presenting a brighter and larger view. The moon follows an elliptical, or Kepler, orbit around the earth, with the closer focal point deemed the perigree, the opposed deemed apogee. What made this apparently news worth was that, as it was during a full moon, the event was easily observable; however, the distance the moon presented is not uncommon. For example, June of next year will present a full moon only 36 km further than of this month and yet August of the year after will present a full moon 57 km closer.

Wine Cup

Wine Cup, Callirhoe involucrata

A native wildflower to Texas and other parts of the Great Plains, the drought tolerant perennial Wine Cup spreads over the ground in a vine-like fashion. While they close in the evenings, they are unique in that they will close permanently after pollination. A signal of pollination status is not uncommon among angiosperms. The flowers of lungwort, for example, have color variation indicating age and therefore nectar and pollen status as younger flowers tend to have more of both.

Rio Grande Chirping Frog

Rio Grande Chirping Frog, Eleutherodactylus cystignathoides

With a size no larger than 2.5cm, the Rio Grande Chirping Frog has quite a loud call that is often mistaken for crickets or some nocturnal bird. The Spotted, Cliff, and Rio Grande Chirping Frogs are all quite unique in that they do not need water to develop into a full adult. They instead lay their eggs in moist soil, and undergo metamorphism while in the egg hatching in adult form. As such, soil found in potted plants soon to be shipped across the state are not an usual place to lay eggs. These various species, specifically the Rio Grande Chirping Frog, have been found far from their native range of the Lower Rio Grande Valley, from San Antonio, to Houston, to Dallas. This is likely the case for the expanding range of the Cliff Chirping Frog as well. As a relatively new arrival, it is unclear the impact this frog may have, but unlike many other animals has adapted well to urbanization.

This is the second year we've heard them in the neighborhood, and they are definitely gaining a solid foothold. Their adaptability to urbanization likely contributed to their survival and thriving population even in one of the worst droughts we've had in history. While water was restricted, regulations were lenient on having an irrigation hose to help maintain house foundation. It is of no surprise that ones I've heard have been close to the walls, which also provide wonderful cracks, shrubs, and foliage to hide in. I've only seen one once, which is this photo, taken with my phone, trying to determine which chirping frog it was. He was a devil to find.

Bush Stone-curlew

Bush Stone-curlew, Burhinus grallarius

The Bush Stone-curlew, sometimes called the Bush Thick-knee, is certainly one of the oddest and most unique birds of Australia. They can stand up to 60cm tall on gangly legs and knobbly knees, with large yellow eyes and facial feathering that seems to give them a permanent look of sadness. With a nocturnal call comparable to a screaming baby or women, it is understandable why the Australian Aboriginal cultures weave many stories around these birds, and often associate it with death. Foraging occurs during the evening and night time hours, feeding on a host of motley items from insects to seeds, molluscs to small animals. The range extends throughout most of Australia, but the conservation status varies from vulnerable to endangered. Some states have conservation efforts currently active before the population declines more, encouraging landholders to control predators better specifically feral cats and foxes. When threatened or disturbed, the bush stone-curlew will either freeze, crouch down, or both.

The campus had plenty of these around, and unlike many places they were not hard to observe during the day. The call certainly takes awhile to get use to, and caused me to wake up multiple times. I even watch one walk right up and under the balcony, call for a minute, then walk off hunting for food as if nothing happened. Definitely one of my favorite birds even if it was a love-hate relationship.

Green Anole

Green Anole, Anolis carolinensis

The green anole is often referred to as the American Chameleon, despite being unrelated, due to its comparatively simplistic color changing abilities. From bright green to shades of brown and all between, the anole will readily change colors based on a number of factors. The temperature, humidity, health, and mood all play a role in appearance. These lizard are common throughout the southeastern United States with preferences for moist, green, partially shaded environments. An insectivore that can live up to seven years in captivity, the main threat to this species is domesticated cats.