Chestnut-sided Warbler close-ups
Today while conducting field work for several hours at a few sites in Pennsylvania I enjoyed numerous great looks at Chestnut-sided Warblers. These birds of shrub/scrub habitat and secondary growth are distinctive and beautiful in appearance and song. Whenever I see them now I am reminded of Twan and Sean and RTPI’s work in the tropics. In Costa Rica in the Chestnut-sided wintering range they enjoy watching the birds turn into little “meatballs” as they fatten up for the flight north. In fact a Chestnut-sided Warbler banded in Rara Avis was recaptured twice over a four year...
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