New worm-eating warbler

After working around the house for most of the day, I decided to take a mid-afternoon walk back to the Bell Cedar Swamp refuge up the street. The sun was in and out, and I hoped I'd spot something intriguing in that clearing I'd had so much luck with earlier in the week. I wasn't disappointed. On one side of the woods, I heard Ovenbirds singing up a storm, and on the other side, there was this persistent chipping I couldn't quite recognize. I chipped back in as close an approximation of the sound as I could muster, and in short order, I started to get a reply, as the "chipper" began moving closer and closer. Persistence—and patience—are everything in this business, and before too long, the bird making the sounds came into focus. The head cap and the clear breast, along with the relatively drab colors, were sure signs of its identity: a Worm-eating Warbler... a relatively uncommon species. It was probably a member of a breeding pair, and my guess was that I was fairly close to a nest. I didn't want to upset the bird, so I started to move away. Perhaps to thank me, or, more likely, to warn me about further trespasses, the warbler broke into its song, a dry insect-like trill. I broke into a trot.