I conducted some transect surveys at Chesney and Stump Prairies in Siloam Springs. The sparrow numbers significantly increased from last week. Most abundant were SAVANNA SPARROWS. I also had lone CLAY-COLORED, LINCOLN'S, and WHITE-CROWNED SPARROWS, plus a pair of SWAMP SPARROWS. An AMERICAN PIPIT flew over and a PALM WARBLER darted threw a field. MARSH and SEDGE WRENS were still common, but appeared to have dropped in numbers slightly. I still haven't encountered any Sedge Wren nests...I'm still on the lookout though.
The best find was what I believe to be a NELSON'S SPARROW, which I flushed several times on the north side of Chesney on the border of a mowed and a less-recently mowed area. It was in the south-central region of the northern parcel. It was decent sized (e.g. bigger than Spizella species) and very sneaky. It was dark but colorful from the brief glimpses I got--darker than what I would expect for any other Ammodramus species.