September 3, 2020 – The Dog Star Sirius is currently about 15 degrees above the horizon in the southeastern sky just before sunrise. According to the Old Farmer’s Almanac, the Dog Days are the 40 days beginning July 3 and ending August 11, those are the hottest days, the most sultry days of summer, and those dates coincide with the rising of Sirius, the Dog Star. In the past when that bright star became visible in the northern latitudes it was a precise celestial event telling those ancient people in the northern hemisphere that a seasonal change was coming. We can look around at nature and see, and even hear, other signs of change as we enter the final weeks of summer. The loud and repetitive bird songs of desperate males seeking mates has gone mostly silent. Like hundreds of tiny high pitched tambourines being shaken all at once the sounds of the cicada fills our ears replacing those spring and summer sounds with a kind of swan song telling us that summer is passing away and fall beckons our attention. The migrating warblers moving south show only hints of those fine bright colored feathers of the breeding season as their spring adornments fade to a more subtle, less showy winter plumage. Even the bright greens of the summer foliage is starting to become a little less intense and is showing signs of wear. Plants are at their peak in growth and some have already gone to seed while others continue to flower and bloom and bear fruit attracting insects, hummingbirds and other animals to the banquet. Another sign of late summer/early fall are the ripened dark purple berries of the Pokeweed plant that are attached to a bright reddish purplish stem. Those late season fruits will feed songbirds and mammals that will in turn spread the seeds far and wide. Over the coming weeks even the miniature Ruby-throated fliers of the northern summer gardens will have moved on as the blooms dry up and the days grow shorter and the nights become cooler. Certainly, a change is in the air, and if we slow down, listen, observe and learn from nature, we may find that we are able to look at our calendars a little less often as we tune in to the natural world in the same way our ancestors must have done for thousands of years.
July 9, 2020 – Roadside ditches, marshes, wetlands and prairies are alive with many beautiful species of dragonflies. From the dainty Eastern Amberwings that are warmly illuminated by sun and perched on the lovely petals in the low growing carpet of color, to the large Green Darners flying in tandem across a shallow wetland, one can hardly find a view that is lacking of these winged jewels. The sight of those zigzagging, quick flying marvels is almost more than the human eye can follow, registering only a blur, until they light nearby. The black and white spots on the Twelve-spotted Skimmer are bright and beautiful making this dragonfly stand out quite well as it flies in the sunlight or perches in the broken light of a shadowy wet ditch. Blue Dashers are visible as far as the eye can see, perched in the open areas on the tips of the many available stems, branches, and tall flowers along roads and on the summer growth surrounding the wet prairies. Sitting in the bright sun the dashers rotate regularly to regulate their body temperature, at times taking what is known as the “obelisk” position where they stick their abdomen in a straight up posture to help cool their bodies. The Common Green Darner is a large beautiful dragonfly that migrates over long distances from the south and breeds here in Northern Illinois during the summer. In July and August the larvae develop and the young dragonflies emerge and work their way south to a warm climate for the winter where they will breed and lay eggs and their young will develop from larvae to dragonfly and fly north in the spring repeating the process. There are 98 species of dragonflies in Illinois and all offer something unique that makes them easy to identify. Male and female of the same species can look similar with only subtle differences or they can look very different with confusing markings and colors. The Common Whitetail dragonfly is a good example of males and females having very different markings on both their wings and bodies that differ in pattern and color. The male has a white body while the female has mostly brown body but they both share a very similar stocky shape. These hot, humid, summer days demand a certain amount of attention devoted to observation of the dragonflies of Illinois. Bring binoculars.
July 6, 2019 – Summertime here in northern Illinois is the time we find a variety of dragonflies that are using the wetlands and prairies. Healthy ecosystems provide a food source and a breeding habitat for a number of types of dragonflies like the beautiful amber colored Halloween pennant, Eastern pondhawk, Great blue skimmer, Red-mantled saddlebags, Black saddlebags, and many more. One of the largest dragonflies is the Common green darner that is actually a dragonfly that migrates over 400 miles to lay their eggs in the calm backwaters, ditches, and ponds of our area. A research paper published December 19th, 2018 “Tracking dragons: stable isotopes reveal the annual cycle of a long-distance migratory insect” (Hallworth et al), explains “We demonstrate that darners undertake complex long-distance annual migrations governed largely by temperature that involve at least three generations.” It seem unlike birds that travel back and forth and repeat their migration for a number of years, the green darner’s migration requires three generations to complete a full cycle of going north, back south, and back north. Due to their small size, dragonflies can easily go unnoticed by most, but slowing down, especially in those ideal habitats of prairies and wet areas, a fascinating window to some stunning colors and beautiful detail can open to the patient observer with such a variety of these little flying gems.
July 22, 2018 – The dragonfly has had its’ place in the myth and symbolism of humans for thousands of years, both good and evil has manifested in the folklore and the art of both prehistoric and modern humans. From the primitive cave paintings to the Art Nouveau dragonfly pendants there is no denying that their beauty is an inspiration. Their evolution began over 300 million years ago, as some fossil records show amazing giant dragonfly like insects with wingspans of over two feet. But from a different path millions of years ago our modern dragonfly evolved. The modern dragonfly is much smaller, the largest dragonfly in North America is the Giant Green Darner of the Southwest that has a wingspan of around five inches. Here in Illinois we have the Common Green Darner that looks similar to the Giant Green Darner but it is a little smaller with a wingspan of a little over three inches. The photo shows the Common Green Darner clinging to a corn stalk leaf where many others were feeding along a grassy road in rural Iroquois county.
June 26, 2018 – Along the uncut rural roadsides and in the meadows where the butterflies go, along the creeks and over the sparkling waters of ponds, the delightful summer air is in motion with dragonflies of many shapes and sizes with a variety of color patterns. Halloween Pennants, Common Whitetails, Eastern Pondhawks, Widow Skimmers and other species like the Twelve Spotted Skimmer which is found throughout the U.S. and southern Canada is shown in the photo perched on a dried weed in Iroquois county. Mostly unnoticed or ignored, dragonflies can only really be appreciated for their unique beauty and color patterns when seen through binoculars or a camera zoom.