Tennessee Warblers at the Fox River Sanctuary in Waukesha Wisconsin. When I arrived around 11:00 Tennessee Warblers were plentiful, but then numbers dropped in a short period of time. All that I viewed were adult males. Other warbler species present were Cape May, Palm, Yellow, Blackpoll, Bay-breasted, Yellow-rumped, Northern Parula, and Chestnut-sided. The best day I ever had at this location for warblers. Images taken on May 13, 2014.
Binomial name: Vermivora peregrina
Size: 4.75” long, 7.75” wingspan
Weight: 0.35 oz.