Randolph S Little
22 May 1977
- 1.0 km N of Chiricahua Mountains; Portal; Sulphur Draw
- Coniferous Forest
- Deciduous Forest
- NAGRA IV-D
- Sennheiser MKH 404
- Dan Gibson Parabola 45.7cm/11cm (18in/4.3in)
NOTES: (Species Sound: Intermittent. Breeding Status: Territorial paired. Stimulus for Sound: Playback Bubo virginianus and "Pygmy Owl." Behav. Context: Arrival? Frequency of Sound: High. Gen. Climate: Arid. Cover Density: Sparse. Strata: Song perch.) the recorder was stopped and started sesveral times to facilitate playback (and subsequent imprfoved reception) to lure the owls closer to the recorder.
Part A: 10:25
Part B: 3:47
ML Notes: One call that is heard throughout the recording by probably both the male and female is the "Four-note Location Call" (hoo hoo-hoo hooo), as described in the BNA. Note that the recordist mentions in his recording that the lower-pitched sound is probably from the female, but according to the BNA, females consistently have higher-pitched calls. Later on, the Four-note Location Call seems to change to an "Agitated Location Call", similar the the call mentioned above, except that the last note is replaced by "ow! " (i.e. hoo hoo-hoo ow!) Other calls heard in the recording include the Contact Call which is described in the BNA as a hollow whistle ending in an upward inflection and phoneticized as coo-weep!) These Contact Calls may possibly evolve into "Agitated Contact Calls). The recording may also include several barks which the BNA phoneticizes as ow!-ow!-ow!-ow!-ow! or yenk!-yenk!-yenk!-yenk! CZ 13/01/2004.