I have four crows that come to my feeder, but are wary of coming when
I am visible to them. I have also found that my voice can scare the
crows away. Most birds don't seem to be affected by the human voice,
but if I'm out of sight and say something as simple as "Hi Crows,"
the crows will immediately take flight. Do other birders have any
observations about the human voice and how it affects various birds?

Lee Rentz
Shelton, WA