by Matthew Hutson

reprinted with permission, The New Yorker

Awhile ago, I searched for a beard trimmer in my bedroom. I spent probably forty-five minutes looking in every likely location at least twice, and every unlikely location at least once. I swore up a storm; the trimmer never turned up. I’ve played similar games with pants. There’s a reason for the burgeoning market in electronic tags that track your belongings.

Our poor memories can seem mystifying, especially when you consider animals. This time of year, many species collect and cache food to stave off winter starvation, sometimes from pilfering competitors. So-called larder hoarders typically keep their troves in a single location: last year, a California exterminator found seven hundred pounds of acorns in a client’s wall deposited there by woodpeckers. In contrast, scatter hoarders—including some chickadees, jays, tits, titmice, nuthatches, and nutcrackers—distribute what they gather over a wide area. Grey squirrels use smell to help them find their buried acorns. But many scatter hoarders rely largely on spatial memory.

People first noticed scatter hoarding by 1720

by Matt Hayner, LCAS board member

While the Empidonax Flycatchers (Acadian, Alder, Least, Willow, and Yellow-bellied Flycatchers) of Northern Illinois may be visually indistinct and difficult to characterize by sight alone, our summer-resident Eastern Kingbirds possess one of the most distinctive markings amongst North American birds: the white terminal band on their tails. However, it turns out this is not the only high-contrast characteristic of the species.

Eastern Kingbirds are known scientifically as Tyrannus Tyrannus (family, species), and the redundancy of the name is indicative of the birds’ behavior. From Cornell’s birdsoftheworld.org:

by Matt Hayner, LCAS board member

We’re now past the steep part of the spring migration in Lake County: April and May were filled with the visual delights of charismatic warblers, diverse water birds, and iridescent hummingbirds. However, perhaps underappreciated is the auditory richness of bird calls and songs that also fill the air during (and after) a migration.

Kenn Kaufman, field editor for Audubon magazine, says, “Birds, like other creatures, must be able to recognize their own kind, at least during breeding season. While some other animals may identify potential mates by smell or other chemical cues, birds generally rely on sight and sound.” For people, learning to listen to birds and

While annual cicadas are commonly heard singing in Lake County every year, there is a population of periodical cicadas that only emerges here every 17 years. This massive emergence is expected in May and June of this year (the last periodical emergence occurred in 2007). Millions of cicadas will tunnel out of the soil, crawl up trees, sing, mate, lay eggs, hatch into nymphs, and complete their life cycle returning to the soil under trees where they live on tree sap until their next emergence in 17 years. The periodical cicada population in northern Illinois is known as Brood XIII.