Here’s what I found. The birds are in peril- sometimes. They are seasonal. When it’s a quiet morning and there aren’t many birds around, can I tell the difference? Do I know if everyone is present and accounted for? How can I know if some birds are dead, never born or are merely elsewhere? I still don’t know. But I do have a small audio record of their songs and presence in my yard over this past year. In the overall scheme of things- eras and eons- I do have a very tiny sampling to use for comparison in the upcoming year.