natural vocalizations; calls from the same pair as in XC189898, given upon taking off.

bird-seen:yes

playback-used:no

natural vocalizations; calls from one of a pair of birds perched on a large cactus in fairly open dry scrub adjacent to a tall cliff.

bird-seen:yes

playback-used:no

one, then two, perched; much wind; includes good, quiet trills;

bird-seen:yes

playback-used:no

five flocks totaling about 100 birds departing their roost and breeding cliff to forage;

bird-seen:yes

playback-used:no

five groups totaling over 50 birds in flight, stopping to feed briefly and then continuing on their way; shortened at 1:26, three more in flight; 1:34, more in flight at close range; 1:47, another three taking off, nervous about me;

bird-seen:yes

playback-used:no

three birds on a large, columnar cactus; interval shortened at 0:43 for two different birds on top of a cactus, taking off at the end; interval shortened at 1:03 for six birds taking off; shortened at 1:25 for a small flock in flight;

bird-seen:yes

playback-used:no

calls from a flock of eight that flew in and landed at close range; big gain adjustment as they approached; interval altered at 0:26 for two in flight; interval shortened at 0:33 for a series of recordings of small groups flying in, land, and feeding briefly; shortened at 2:21 for perched birds that then departed (good); includes good, quiet trills;

bird-seen:yes

playback-used:no

small groups at nest colonies on cliffs; interval shortened at 0:40, calls from about 15 at a nest structure on the cliff; interval shortened at 1:22, two birds on their nest on the cliff face, taking off at the end; shortened at 2:50 for six at a nest on the cliff;

bird-seen:yes

playback-used:no

single bird perched on top of a small tree, taking of at the end; good trills, good, clean single calls;

bird-seen:yes

playback-used:no