The solace of purple martins

Post by Jen Berlinghof

There’s solace to be found in the fact that the rhythms of nature march on. This spring, the sun still rises. The wild leek (Allium tricoccum) still pulses its verdant green arms through the pulpy leaf litter of the forest floor. The birds still surge through the skies as they migrate to and through the Lake County Forest Preserves in northern Illinois. Like us, some of these birds are inclined to congregate in large communities. Over the years, the colonies of a particular species, the purple martin (Progne subis), have become largely reliant on people to provide shelter for their nesting flocks.

Two purple martins look at each other on the ledge of a martin house. Photo © Phil Hauck.
Two purple martins look at each other on the ledge of a martin house. Photo © Phil Hauck.
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“Kwirr, churr, cha-cha-cha”

Walking through the woods in late fall, everything seems to be settling in—the colors calming to variations of brown, the dull roar of the wind the only sound. That is, until the staccato “cha-cha-cha” call of a red-bellied woodpecker breaks the lull of the wind, and a tiny black and white tuxedo (complete with a red cap) flashes past me, announcing the bird’s entrance into the woods.

Red-bellied woodpeckers (Melanerpes carolinus) are year-round residents of Lake County, Illinois. The sounds and sights of these birds in the woodlands and at backyard feeders command attention, especially against the bland backdrop of late autumn and early winter. Like its six fellow species of woodpeckers in Illinois, the red-bellied woodpecker excavates holes, commonly called cavities, in trees for nesting and shelter—all the while snacking away on the tiny critters crawling under the bark. Continue reading

Warbler fever

Birding fever hit a high this past weekend in natural areas throughout northern Illinois. Birders flocked in throngs with binoculars strung on their necks like potential Olympic medals and a hope of spotting some of the most coveted migratory birds— wood-warblers. Members of the family Parulidae, wood-warblers are the colorful jewels of migration from the sapphire blue of a cerulean warbler (Setophaga cerulea) to the amber orange of a Blackburnian warbler (Setophaga fusca). Yet, as these birds flit about in the treetops, no color is as visually striking as the lemony-yellow citrine that adorns so many warblers as they pass through our area on a flyway. Once these impish birds reach their destinations (as far as northern Canada for some species) and breed, they will molt their flamboyant plumage and become far less conspicuous, which is why seeing them in the spring is considered such a prize for birders.  Continue reading