In the mid-elevation sites we visited last week, juncos were reliably everywhere. The challenge was luring them into the nets.
Not so in the low-elevation sites we just visited. We spent most of our time looking for juncos; once we found them, we had them in the nets sometimes within thirty seconds of starting playback. This was the land of the few aggressive juncos.
At three sites we found just eight juncos, compared to eighteen at the three mid-elevation sites. This is not an elevational difference I anticipated, which is neat!