I visited the Croton Unit later in the morning, and I heard the Worm-eating Warbler sing several times, very far up one of the branches of the ravine Chuck described. I tried to track it down but never heard it again. This sure isn't a very cooperative bird!
A BLACK-AND-WHITE WARBLER, a rare summer resident in SE Iowa, was singing next to the parking lot. I found most of the other expected birds including Kentucky Warbler, Cerulean Warbler, Blue-winged Warbler, Louisiana Waterthrush, Northern Parula, Yellow-breasted Chat, White-eyed Vireo, Acadian Flycatcher, and Red-shouldered Hawk.
From: <ia-bird...> <ia-bird...> On Behalf Of LaSondra Fuller
Sent: Monday, June 8, 2020 3:26 PM
Subject: [ia-bird] Worm-eating warbler
Finally, after 7 times trying for the worm-eating warbler, I heard and saw it at 7:30 am at the croton/Shimek unit 3 miles west of Argyle. At the first creek crossing instead of going left over the main creek, go right, through the brush, and follow the smaller creek up to the wooded canyon. This is where the bird was. It was approx. 20 yards up the canyon.