Bay-breasted warbler.

Bay breasted Warbler, May 15, 2018.

A splash of colour on a grey winters day.

Rondeau Provincial Park, Ontario, Canada.


Setophaga castanea
Bay-breasted Warblers are voracious predators of spruce budworms. One study concluded that they consumed over 13,000 budworms per hectare (about 2.5 acres) in just 41 days.source - Cornell Lab of Ornithology.

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