dendroica (from dendron, tree, and oikein, to dwell) nigrescens (blackening)
Monday, April 2, 1984 — 7:55 am
Coronado National Forest, Arizona — Sabino National Recreation Area
I crossed the flats and came to the base of the canyon. The creek that ran down the canyon curled out of the mountains and ended in a small dammed pool surrounded by cottonwoods. The trail I was walking on paralleled the creek just above the dam. Two Black-throated Gray Warblers were in the cottonwoods along the creek, foraging rapidly through the treetops.