ID certainty 100%. (Archiv. tape 162 side A track 15 seq. A)

Recording equipment: Marantz Pmd 660+Sennheiser ME66. Comments: rec at 10 m, on road in front of OTS station. To access original .WAV file contact marceloa27(at)gmail.com

bird-seen:yes

playback-used:no

interval shortened at 1:08, single bird joined by a second, some duet periods; shortened again at 2:03, starting with a quiet, long quaver, more of that after 3:25;

bird-seen:yes

playback-used:no

Arroyo Aguamarina; intermittent calls, some quiet, from family group of about four birds moving through the canopy of TDF;

bird-seen:yes

playback-used:no

a couple of types of calls, given at dawn in the mesquites after dawn song

playback-used:no

This is what I call a duet, and while they don't seem formally structured, the birds call together and seem to play off of each other--some type of coordinated calling.

playback-used:no

variety of calls

playback-used:no

Variety of calls, including whips in first half, chip series at end, excited song-call, short interaction calls

playback-used:no

interactions of pair; 2nd recording of these individuals;

playback-used:no

bird-seen:yes

playback-used:no

calls from seemingly a single bird in the cottonwood canopy;

most of my recordings of this species from a given year (and potentially adjacent years) will be of the same one or two pairs;

playback-used:no

All timings original. In a Myracrodruon urundeuva tree. Gallery forest, Uberabinha River limiting one side of my backyard. Filtered at 500 Hz high pass. Treated mildly for noise reduction. Two off notes areas filtered at 1000 high pass. Normalized.

bird-seen:yes

playback-used:yes

an interval shortened; interaction calls among three birds, seemingly 'peaceful,' not sure what is going on

bird-seen:yes

playback-used:no