[EBB Sightings] an addendum

Dear Birders:

In the responses to my query about changing populations, a couple of additions should be made up front.  1) The increase in the raven and crow populations.  Though the two species do overlap, ravens appear to be dominant in the higher hills and in the ridgeline regional parks. 2) Respondents report occasional visits from Cooper's Hawks which possibly could affect passerine populations.

Phila Rogers