Spring Migration

A beautiful long-distance migrant, the male Baltimore oriole, pauses for a moment on the branch.

May 10, 2022 – During spring, when anticipation is thick in the air and weather conditions line up to provide some favorable winds out of the south, many migrants take advantage of the strong tailwinds to move north towards their summer ranges. Shorebirds, warblers, sparrows, and hummingbirds travel from points south and appear like magic at backyard feeders, flooded fields, lakes, rivers, and rural thickets along their route. Some of these avian travelers have flown a great distance only to stop here in the Midwest to rest and build fat reserves until the time is right and the cold and foul weather of Northern Canada is on its way out. Some species have already arrived at their summer range here in the midwest, like these backyard favorites, the Baltimore oriole, and the Ruby-throated hummingbird. These birds have traveled a long way, coming from as far as Central and South America, arriving just as the plants spring forth and insects emerge, the tiny insects providing the needed food for the new arrivals and the ones yet to come. Many species of warblers have arrived, some just passing through while others will nest here. The spring warblers in their breeding plumage are always a thrill to the observer. The bright colors of the male Baltimore oriole stand out as it flutters from branch to branch among the new spring growth. The distinct rich songs of the orioles will also delight and alert you to their presence. Ruby-throated hummingbirds zip about at high speed from tree branch to feeder as they try to chase the persistent orioles away from their sweet food source. In our rural areas, hundreds of American golden plovers stand like statues across the expanse of the unplanted agricultural fields in Iroquois County. The American golden plover is a long-distance migrant that spends the cold winter months in South America and travels to far Northern Canada’s arctic region for the nesting season. The plovers have been here for weeks feeding and resting and waiting for the cues of nature that tell them when to take to the air and continue their epic journey towards their nesting range.

The tiny Golden-crowned kinglet,a medium distance migrant that winters in Illinois, searches for insects through the branches.

American Tree Sparrow

April 5, 2019 – The soft songs of the American Tree Sparrow are like a pleasant melodic whispering that easily causes one to momentarily pause and focus. This medium size sparrow can be seen at times singing from a low perch on a bush or while foraging on the ground at the edge of a thicket. Winter flocks of these little rusty capped birds have been gathering, feeding, and building energy while waiting for that moment during their spring migration when they take their night flight north towards the Arctic tundra of Canada and Alaska.

As days begin to grow longer metabolic changes occur that help prepare the birds for their long flight. According to the Cornell Lab of Ornithology, a huge increase in appetite helps to build up fat reserves that are required for such a physically demanding journey. Both internal and external factors play a role that triggers the big push north for the nesting season. Weather conditions are important so as to coincide with insect hatching in the stopping areas along the migratory route.

One can only imagine what it would be like to be part of a flock of a few hundred small birds on a cool, crisp starry night flying towards that shimmering fiery glow of the auroras above the northern latitudes. Those little sparrows face many miles and a number of challenges as they work very hard to reach their nesting grounds north of the tree line where the Arctic fox, the polar bear, and the ptarmigan call home.

Merlin Falcon

The little falcon perched on a branch watching a large number of Red-winged blackbirds.

March 20, 2019 – The little falcon was perched and alert with its’ senses focused on a few thousand loud clattering mostly male Red-winged blackbirds that were on their spring migration. There was such an impressive number of birds in this flock that they gave the late winter trees and shrubs an appearance of being covered in dark leaves. Patiently watching from an old snag, the Merlin concentrated on a part of the flock that were flying, resting, and feeding in the grasses and along the roadway just to the north. Soon the little raptor, with a sudden and great speed, left its’ vantage causing the flock to take to the air in a large cloud of an evasive synchronization that resembled that well known and mesmerizing murmuration of starlings. I quickly lost sight of the little falcon, but I suspect after all of that commotion, which lasted no longer than 30 seconds, there may be one less blackbird in that huge flock of travelers.

Hundreds of Red-winged blackbirds and a few other species in a large tree in view of the Merlin.

The Merlin falcon is a compact and powerful bird of prey, it is slightly larger then the American Kestrel, which is the smallest falcon in North America. The Kestrel is a common falcon in our area that can be observed year-round, often perched on a utility wire while it is hunting voles, mice and insects in the grassy ditches and waterways along our rural roads. The less common to our area is the Merlin, it is often recorded in Illinois during the winter months. It spends the summer, during the breeding season, in the boreal forests of Canada. It appears though, that the Merlin is expanding its’ summer range. In recent years there has been an increase in nesting records in Wisconsin that seems to be expanding south, according an article by Eric Walters “Merlins Nesting In Illinois” published in a journal of the Illinois Ornithological Society. Data collected daily from bird enthusiasts is reflected in the eBird range maps for this species and shows that there has been a number of recorded Merlin sightings in June and July in Illinois along with a few confirmed nesting records in Northern Illinois and Northern Indiana in recent years.

The Red-necked Phalarope

Red-necked Phalarope

Red-necked Phalarope

May 26, 2017 – The Red-necked Phalarope is a small delicate looking bird about 7 inches in length with an elegant form and dance like movements as it swims across the water hunting for insects. On a less traveled migratory route the Phalarope is occasionally seen by a lucky few each year in Illinois. The west coast and the western states of North American and off shore on the east coast is the birds normal pattern of migration as it heads for the lakes and ponds on the tundra in the arctic for the nesting season. This spring migration was no exception when I came across a pair in north western Iroquois county in a small flooded area surrounded by corn stubble. The pair were in breeding plumage and were on constant hunt for small worms and insects, at times spinning around in circles in the water churning up a vortex of sediment and exposing perhaps a tasty insect larvae. During the winter the Red-necked Phalarope is out to sea off the coast of Ecuador and Peru with concentrations around the Galapagos Islands where the warm and cold ocean currents meet creating a plankton rich food source for this pelagic species.

Red-necked Phalarope

Red-necked Phalarope