(Cygnus buccinator) was sighted near Marshalltown on July 4th — a species entirely absent from Iowa for most of the twentieth century, hunted out by the late 1800s and now returning through decades of careful reintroduction from remnant populations in the upper Midwest. Its presence here is a measure of how far this recovery has come.
Midsummer is molt season for trumpeter swans. Their flight feathers regrow over several weeks, and during that flightless stretch they become entirely dependent on stable water and dense vegetation for protection. The current streamflow is just over 12 cubic feet per second — a near-record low following two weeks of drought that succeeded July's earlier storms. These conditions shrink the shallow wetland margins where molting birds shelter and feed, leaving them exposed and unable to move elsewhere even if conditions worsen.
One bird in early July, in a drought year, might seem like a small thing. But in a region where deep wetlands remain thin on the ground, it signals that the slow, deliberate work of restoring this species to central Iowa is holding, even under stress.
Data from USGS and iNaturalist
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