Great Backyard Bird Count 2025. If you already use merlin or ebird, all entries over the. Anyone can participate, from beginners to.
Knowing where birds are seen—and not seen—is more important than ever during this el niño year, and as climate change weather fluctuations influence bird movements. Launched in 1998 by the cornell lab of ornithology and national audubon society, the great backyard bird count (gbbc) was.