Trout Park

Three forested areas along the Fox River were surveyed and assessed as part of the plan to widen the I-90 bridge.


Trout Park serves as important stopover habitat for migrants and contains higher avian diversity relative to similar urban forested areas. We conducted 9.75 hours of line transect surveys and detected 74 bird species

The most common bird species were
– Cedar Waxwing
– American Robin
– Red-winged Blackbird


We conducted a 3.5 person hour timed search in the main channel of the Fox River and found

– 5 live individuals of Giant Floater, Pyganodon grandis
– 1 native snail species, Liver Elimia, Elimia livescens was abundant
– 1 non-native, invasive Chinese Mystery Snail, Cipangopaludina chinensis was abundant

Aquatic Macroinvertebrates

We conducted 3 person hours of surveys in one spring north and one spring south of I-90. Surber samples for benthic macroinvertebrates and D-net sweeps and hand collecting found 32 taxa including

– 1 taxa of Ephemeroptera (mayflies)
– 3 taxa of Plecoptera (stoneflies)
– 5 taxa of Trichoptera (caddisflies)
– 3 taxa of Coleoptera (beetles)
– 10 taxa of Diptera (flies)

Reptiles and Amphibians

We conducted 27.75 person hours of visual encounter surveys and documented

– 5 species of amphibians

American Toad, Anaxyrus americanus (15),
Bullfrog, Lithobates catesbeianus
Green Frog, Lithobates clamitans
Northern Leopard Frog, Lithobates pipiens
Southern Leopard Frog, Lithobates sphenocephalus

– 3 species of reptiles,

Spiny Softshell, Apalone spinifera (4),
Painted Turtle, Chrysemys picta
Red-Eared Slider, Trachemys scripta