Hummingbird Migration Map 2024 Ohio State University. The decreasing daylight hours trigger a hormonal change in the. Some viewers are seeing increasing numbers for now, others reporting their last.
In ohio, residents can expect to spot the birds from early april, in the southern part of the state, through early may in the north, according to the 2023 spotters’ map. Some viewers are seeing increasing numbers for now, others reporting their last.