Another busy morning for warblers on Ward Hill, with Chestnut-sided replacing Blackburnian as the most numerous species. Also two unexpected bonus sightings: a weasel sharing a low shrub with three yellowthroats, a Black-throated Blue and a Magnolia; and a Great Blue Heron flying rather low overhead. (14) Chestnut-sided Warbler; (6) Blackburnian Warbler; (6) Black-throated Green Warbler; (5) Common Yellowthroat; (4) Magnolia Warbler; (4) Black-throated Blue Warbler; (1) Black-and-white Warbler Pipit