Solitaire was singing from the top of a Lodgepole Pine just below a water pipe and the road. It sand from this position for 3-4 minutes. The drumming was a Red-naped Sapsucker.

bird-seen:yes

playback-used:no

not seen; from a grove of junipers and sycamores; migrant or wintering individuals; some wind in the trees; different from any recorded before; another one singing off to the side;

bird-seen:yes

playback-used:no

Bird perched near top of large Ponderosa Pine on a steep slope. Song starts at 0:22

bird-seen:yes

playback-used:no

also White-headed Woodpecker drumming

bird-seen:no

playback-used:no

two Townsend's in large Alligator Juniper, interior perches 1-2 m apart, in slow motion dance as one moves and the other moves a bit, too, staying close; periods of loud song, but mostly whisper song; both birds singing, seemingly in somewhat alternating fashion, one mostly giving quiet, buzzier songs, the other much louder; wintering birds; others audible faintly in the background; overall, a very involved form of interaction (no physical interactions between them) with song and close positioning for a long time; they are feeding on juniper berries, but not from this species (Alligator), which is a more open type of juniper with nice perches and open viewing under the canopy; a particularly nice stretch from 5:32 to 8:00; I did not move, I wasn't adjusting the gain, so you can tell what is whisper song, but very hard to tell which bird is which, in the many switches; same birds continued in XC775251;

wintering birds, 2nd recording of multiple birds, winter song phrases and calls; interval shortened by 30 seconds at 0:30; 3rd recording on this date (1st and 2nd are XC351896 and XC351895);

bird-seen:yes

playback-used:no

second half of the recording is the better part although not so annotated, I learned later that RAR had used playback earlier to try to stimulate it, so best regarded as delayed RPB; fairly close on top of a 1m stunted spruce in alpine area; 1st recording of this individual

bird-seen:yes

playback-used:yes

Vesper song

bird-seen:no

playback-used:no

winter 'song' or song phrases; multiple birds present; 2nd of three recordings on this date (the others are XC351895 and XC351897);

bird-seen:yes

playback-used:no

Two birds singing.

bird-seen:yes

playback-used:no

bird-seen:yes

playback-used:no

at least three birds, first half with chases and interaction, with some vocalizing in flight,, up to 0:50 with some audible wingbeats in the chases, then the third bird, out of sight, started singing softly, and one of the original birds returned and started calling loudly; from agave stalks or small to medium junipers; wintering birds;