Cape May warbler,
Rondeau Provincial Park, Sept 5, 2015.
Had the first cold blast with a bit of snow this year and I'm already looking for spring.
The average clutch size of the Cape May Warbler (six) is greater than that of other warblers. This large clutch size may allow Cape May Warbler populations to expand rapidly during outbreaks of their preferred prey, spruce budworms.
source - https://www.allaboutbirds.org/guide/Cape_May_Warbler