May 13, 2021 – As the springtime brings awe-inspiring color to the forest floor with a variety of wildflowers like Dutchman’s breeches, Virginia bluebells and Woodland phlox, likewise the flowering dogwood and redbud trees standout brightening up the understory with their new blooms that is easily visible through the emerging greens of the awakening landscape. April and May are exciting months here in Northeastern Illinois and as the new plant growth comes in, there are also migrating birds arriving and bringing their own variety of color and excitement. The bright orange plumage of the male Baltimore oriole is a highly anticipated favorite this time of year to the backyard feeders. These long-distance migrants are lured in with grape jelly and cut oranges that feeders put out, and these birds never disappoint with their rich songs and amazing beauty. Cat birds, King birds, and flycatchers have arrived to take up summer residence for the nesting season. A variety of small colorful warblers, drab kinglets, and tiny Ruby-throated hummingbirds appear like magic, some are here to nest while others are just passing through on their way much further north. Many species of well known birds show up like clockwork each year, their songs and their plumage are as familiar to most as the clouds in the sky. But there are other birds like American Golden-plover that go practically unnoticed even though they spend three or four weeks staging on the agricultural fields in our rural areas of Iroquois and Kankakee counties. The American Golden-plover is larger than a robin but smaller than a crow. It is not always easy to spot in the farm fields with its dark colored plumage, a good camouflage for a ground nesting bird like the plover. Even when there are hundreds of birds in a field they can be easily missed by the passerby. These birds have come a long way from their winter home on the grasslands of Argentina and Uruguay and it is an amazing sight to see them over the few weeks they spend here waiting for the right conditions to move north. When the plovers do finally leave for their nesting grounds they will fly above the Arctic circle onto the vast tundra from Baffin Island to Alaska completing the northbound part of their trip of over 8000 miles.
January 21, 2021 – A little bit smaller than the Merlin falcon and very close in size to the Mourning dove, the American Kestrel is the smallest falcon in North America. These determined little predators are focused hunters, whether perched on a utility wire, fence post, or hovering over grassy areas intently watching for any movement from small mammals, insects, and birds. Their keen vision and superb flying ability allow for a stealthy and swift attack from above on their unsuspecting prey. The drama of predator and prey plays out hour after hour, day after day above the grassy areas along the rural roads, ditches, and busy highway medians here in Northeastern Illinois and across the United States. Because of their small size the falcons go mostly unnoticed by humans speeding past the little perched hunters. It doesn’t take much effort to be just a bit more observant to a moment in nature, it will quickly become almost impossible to not see these little predators perched and hunting. Soon the sightings of Kestrels add up and the mind expands beyond the mundane for the human observer as that moment in nature is understood. Also known as the Sparrow hawk, the Kestrel is certainly the best known and most colorful and boldly marked falcon in North America. The male Kestrel has slate blue-gray colored wings while the females have reddish-brown wings,a heavily streaked chest and they are also up to 15% larger than the male. The bold and vibrant colors of the male Kestrel are quite intense under bright sunlight. The females, while they still have beautiful colors, are less vibrant than the males. The Kestrel lives year around in Illinois and nest in natural occurring places like rock crevices and overhangs, they also take advantage of abandoned woodpecker holes, man-made nest-boxes, old buildings and structures near a good hunting area. They most often have only a single brood. Incubation of four or five eggs last about 30 days, the female will brood for about nine days after the last egg has hatched and then only at night or during harsh weather conditions. The American Kestrel falcons are widespread in the Western Hemisphere and occur from Alaska and Canada to Tierra del Fuego in South America.
December 24, 2020 – Perched at the top of a utility pole calmly scanning the surrounding landscape for prey, a beautiful Snowy owl appears in Iroquois County the day before our first snow. To the Inuit people of the north, the owl represents guidance and wisdom and has an important relationship with both humans and the environment. Snowy owl sightings have been reported in Northern Illinois and Northern Indiana recently as more birds move south to escape the blizzards and sub-temperatures of the Arctic. As I write this, there are blizzard warnings in the area of Iqaluit in the territory of Nunavut in Canada as a low pressure system is making its way through Hudson Bay toward southern Baffin Island bringing cold temperatures, snow, and 50 mile per hour winds. Here in northern Illinois the arriving Snowy owls are enjoying 37 degrees with 11 mile an hour winds on the mostly flat and sleeping winter landscape of the prairie state that somewhat resembles the Arctic tundra above the tree line, a place familiar to the owls. The female Snowy owl is larger than the male and has a wingspan of about 4.5 feet and weighs almost 5 pounds. They have a white face and large yellow eyes, a black bill surrounded by feathers, and they have acute hearing and vision. These Arctic owls are the heaviest owls in North America. To observe them flying low over corn stubble here in Illinois, with their large white wings slowly flapping as they make their approach and glide towards a low perch with some cover hundreds of yards away is an amazing sight. The Snowy owls that have come south for the winter will start moving northward toward their breeding grounds in the Arctic in February and March, and most will be gone by April. The owls will be back on their snow covered breeding grounds where the courtship will start in early May. The cycle will continue high in the north as new generations will be fed, protected, and fledged, and maybe even spend the cold months in a field near you, here in Illinois.
October 15, 2020 – The Swamp sparrow is an elegant, long-legged, medium-sized sparrow that is well adapted and right at home in the thick cover of marshes, swamps, and bogs of the north across eastern and central North America, stretching up into Canada’s Northwest Territories during the nesting season. The Swamp sparrow is more often detected by its song rather than actually being seen in its’ dense summer habitat of sedges, cattails, and shrubs. The variations of songs and calls of the Swamp sparrow have been studied, admired, and described as a slow, sweet, trill that will evoke the vision of a northern wetland to the observer just as the call of the Common loon sends ones’ thoughts to a clear secluded lake in the north woods. Ornithologists have even discovered regional dialects for Swamp sparrows located in different parts of the country. Through the study of the Swamp sparrow’s songs and calls researchers have gained an understanding on how these birds learn and continue to use songs that vary across different geographical regions, and how the sparrows are influenced as young by the popular songs used by the adults of those regions. It seems the most popular songs are the ones that are learned and repeated by the new generation of sparrows and any new variation that a young bird may come up with in its’ song learning practice that is not useful will soon fade away over time. The study also shows those popular songs have persisted in those regions for generations, possibly hundreds of years. The term used to explain how these song types are learned and stay popular to a region is known as “conformist bias”. The sparrows have a song repertoire, depending on the region, of popular tunes that have stood the test of time over many generations, influenced by the adults and put in to practice each year by a new generation of Swamp sparrows. Those tunes that work ring-out across the varied wetlands of North America.
October 8, 2020 – A small flock of Golden-crowned kinglets that had moved south out of their northern breeding range of Canada and the upper Great Lakes were busy foraging for insects south of Kankakee this past week. A cold front brought the chilly winds of change out of the north that provided incentive and opportunity to move south and many birds, including the kinglets, took advantage of the prevailing winds to do just that. Holding quite still, being very careful to resist sudden movements that might frighten the petite, swift moving birds, I was able to easily observe the kinglets as they went from dried weed stems, to low hanging branches, and back again searching for insects. Sometimes the little hunters were only a few feet away, too close for a long lens, but just right for a memorable experience. This encounter was some good medicine, the kind of medicine that can easily provide a temporary reprieve from the tightly wound human existence for any willing person that would take a moment to pause and look around. Larger than the hummingbird, the Golden-crowned kinglet is one of North America’s smallest birds. They have a black and white striped face, olive colored back with wings that have two white bars, and their round little bodies are white and pale gray on the underparts. The kinglets have black legs and yellowish feet that look as though they are wearing little golden socks. Both the male and the female have the bright yellow stripe on their heads, that golden crown from which they get their name. The bold yellow stripe almost seems to flash like a tiny beacon as they move through the shadowy patches of undergrowth at the woods edge. The male birds show some orange color blended into their golden crown that becomes more noticeable when their flashy crest is raised. As the little birds move south on their short-distance migration they can turn up almost anywhere, even near backyard feeders where other birds are foraging. Some will continue south while others will spend the winter in our area, preferring stands of conifers that most likely provide some protection from the bitter cold and a safe retreat from predators.
October 1, 2020 – The Magnolia warbler is a small songbird that nests across the provinces of Canada, from British Colombia, to Nova Scotia, and the Upper Great Lakes, to the northeastern US. The warblers have striking colors even after the breeding season, when many birds lose their bold colorful plumage and become rather dull. During the fall migration these little warblers bring some bright yellows to the early autumn Midwestern woods. These long-distance Neotropical migrants are on their way south stopping for a few days in a small woods in Iroquois County. Suddenly appearing out of the thicket, the Magnolia warblers forage for insects through the leafy bushes at the sunny edge of the small wooded area no larger then an acre. These small patches of land that have for some reason avoided the plow are life savers for migrating birds, insects, and bats. Whether seasonal migrants, or wildlife that is here year around, these small untouched habitats that are few and far between, and barely surviving among the cultivated lands of Illinois are pieces of land that are of the utmost importance to many species. The loss of habitat at wintering and nesting sites as well as the food and resting areas along the migratory routes can have a devastating impact on many species of birds. The Magnolia warblers travel from Panama and Mexico to the far northern US and up into Canada and back again in the fall. These migratory trips can be as much as 4000 miles one way. It is a hard trip for the little fliers and those exhausted birds that can’t find places to rest and feed don’t make it. Awareness and conservation are key to help prevent many species of birds from being listed as rare, or worse, cannot be found. Shade coffee farms that are replacing the sun coffee farms have provided good habitat for the warblers, Hummingbirds, and other species, and supporting shade grown coffee goes a long way in helping provide a winter habitat for these migrants. River valleys, lakes, and the islands of uncut forests across Illinois are the refueling stations for these tired night travelers that still have many miles to go during another exhausting and challenging migration.
September 24, 2020 – The Cape May warbler winters in the West Indies and breeds in the boreal forests of the northern border states from Minnesota east to Maine, and north into southern Canada, from Quebec west to Alberta, and into the southern edge of the Northwest Territories. These warblers are highly dependent on the spruce budworms as a source of food, a good year for the budworms means a great year for the warblers. Those banner years for spruce budworms coincide with more fall sightings in places where the Cape May warblers are less often seen. Although the Cape May warblers specialize in the spruce budworms that are plentiful in their summer nesting areas, they also can take advantage of other sources of nourishment such as the nectar from flowering plants, and the juices from ripe fruits. Similar to hummingbirds, flowering nectar rich plants are an important source in their winter habitats as well during the fall migration. These warblers have a specialized tongue that is semi-tubular that allows them to lap up nectar with ease. They also can use their sharp, pointed bill to puncture the skins of fruits to get to those sweet sugary juices. The little warbler gets its name from Cape May, a county in New Jersey, where the species was first collected, not far from the coast in a maple swamp where George Ord, a zoologist, was on a collecting trip with the celebrated ornithologist Alexander Wilson in1812. There is more to this story about when the Cape May warbler may have actually been collected at a much earlier date, in the Caribbean in 1751, and named the Spotted Yellow Fly-catcher, but that’s another story and it seems the name Cape May has stuck. After discovering the species in Cape May, the next recorded sighting of the bird at that location would not happen for another 100 years.
September 17, 2020 – A quick movement with a flash of color reveals a small silhouetted figure in the low branches just inside the thicket. The sudden motion that has caught my eye is a dark colored bird with bright orange markings that became apparent as the little bird moved to a branch in a spot of filtered September light. A male American redstart with his stunning jet black plumage that is enhanced with bright yellow-orange feathers, and white underparts, moves quickly from branch to branch searching for insects. Soon two more redstarts appear in the trees nearby, but these tiny warblers have a different color pattern than the black male. The new arrivals are either females or first year male birds. The little travelers are gray overall with yellow markings, and although different than the adult male redstart, the flittering little fliers are as captivating as any warbler in the forest. These southbound migrating warblers are on their way to the shrubby forested areas and shade-grown coffee plantations where they will spend the winter in the equatorial latitudes of Central America and western South America. Just like when the redstarts arrive to the spring nesting grounds, the first thing they do when they arrive at the wintering grounds is to establish territories. The little birds become very aggressive and determined to win when it comes to the best shady hunting spots. This type of territorial aggression is sometimes seen at stopovers along the southbound migration route when the aggressor quickly descends on the intruder chasing it away from its temporary hunting area. The American redstart is referred to by some as the Christmas bird because they are in those areas of the tropics around Christmas time. They also have a less dignified name given by locals as the latrine bird because they are attracted to the flies that are numerous in those undesirable locations such as outhouses and dumps. I say what happens in the tropics stays in the tropics. The American redstarts we see in the woodlands of Northern Illinois during the nesting season and during the migrations are always a treat to watch as they fan their tails, spooking insects, and catching them on the wing. We will continue to see migrating redstarts for a while longer but soon they will be gone for the winter.
September 10, 2020 – An exciting forecast for a big push of migratory birds moving south went out last week as favorable weather conditions supported by historic data lined up for this spectacular seasonal event that would start about three hours after sunset, according to the Cornell Lab of Ornithology. Hundreds of thousands of birds moved over Illinois in a massive migration during the night of Thursday the 3rd and continuing through Saturday the 5th. Although this is a very large mass movement of many birds all at once, the migration will continue through autumn as late migrants continue to head south to a warmer climate. A small wooded area south of Kankakee that has been the summer home for Indigo buntings, Song sparrows, Cardinals, Robins, Common yellowthroat, and Brown thrashers suddenly sees an uptick in activity as many small migrants resting and recharging their fat reserves arrive. High in the trees bright flashes of color catches the eye as male and female American redstarts that are searching every leaf and branch for small insects move at a fast pace from branch to branch. The little quick moving colorful redstarts have many miles to go in their journey to their winter homes in southern Mexico, Central America and northern South America. Another small bird that is a long-distance migrant and winters in Central America and northern South America is the Tennessee warbler. Three or four of these drab colored little warblers were hunting a little closer to the ground where they were checking the late summer plants for prey. With a thorough precision, and from every angle, they were plucking tiny insects off the stems and leaves in a patch of five foot tall Waterhemp in an opening at the edge of the thicket. Blue-gray gnatcatchers and Black-and-white warblers could be seen in numbers in the distant trees searching for prey. A Canada warbler that has a distinct bright-white eye-ring, on its’ way to South America, shows up for a moment in a bush at the edge of the woods before disappearing into the thick undergrowth. On the way to its’ wintering grounds in the tropics a Magnolia warbler searches for insects alongside the Tennessee warblers on the bushes and plants low to the ground. This is a great time to watch for a variety of species of migratory birds in the parks, along the waterways, and at backyard feeders, but they will only be here a short time as they continue south for the winter.
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.