Well, I don't know how the study at Ft. Lewis was set up, but in my
experiance from working on McChord AFB, the most commonly recorded
nesting bird was ORANGE-CROWNED WARBLER, by far.

Our study exlcued flyovers, and many non-migrants and raptors, so I could
be over looking many speices.

Russell Rogers
rrogers at halcyon.com