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Yellow-headed Blackbirds in southern Lancaster, PA

Yellow-headed Blackbird with other blackbirds in Lancaster County. (Photo by Alex Lamoreaux)

During the winter months, thousands of blackbirds roost in the marshes of northern Maryland and then fly up to southern PA to forage in farm fields for the day before retreating back south for the night. Last January, Drew and I had success picking Yellow-headed Blackbirds out of a flock that we found, and my friends Ian and Josh had …