"Where I live in Maryland, birds of all types have all but disappeared over the past month or so. The silence where bird song used to fill the air before dawn and during the day, the skies and tree in my yard, the power lines where the birds typically gather....all empty and silent. Anyone else notice this happening?"
maybe they flew south for the winter? lol... ;)
In western MD, there's virtually nothing flying around.
At this time of year there would normally be huge flocks of birds going overhead as they start migrating.
This year, zip.
The sparrows who've lived in my yard year-round for 15 years vanished in mid-summer and have not been seen since.
I keep putting food out for them as I've always done and nothing is eating it except for a rabbit, now and then.
Normally my yard looks like a Hitchcock movie but it's been virtually empty of birds for months, now.