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Yellow-faced Grassquit

Tiaris olivaceus

ML15543


©
Walter A. Thurber
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HACIENDA MONTECRISTO
Santa Ana, El Salvador
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Latitude and Longitude 14.4333, -89.3667 Map

Age and Sex
Age not specified, Sex not specified
Sounds
Non-vocal; Song
Behaviors
Breeding
Tags
; ;
Playback
Used

Comments

NOTES: Cover density: OPEN; RAPID TRILL OR BUZZ. AT TIMES AT THE CONCLUSION OF A TRILL THE BIRD STRETCHED HIS NECK FORWARD, OPENED HIS MOUTH, AND QUIVERED HIS WINGS AS THOUGH SINGING WITH ALL HIS STRENGTH--YET NOTHING COULD BE HEARD. BY APPROACHING TO LESS THAN 3M AND IN 1 MALE(S)CREASING THE GAIN OF RECORDER I COULD CAPTURE A SOUND. PLAYBACK GIVES A BRUSHING SOUND OR A MINOR-LEAGUE BRONX CHEER--VERY LITTLE FOR SO MUCH APPARENT EFFORT OF THE PART OF THE BIRD. PERHAPS MUCH OF THE VOCALIZATION IS ULTRASONIC. OPEN CULTIVATED AREA WI. Response to playback: Different song.

Background Species

Blue-and-white Mockingbird - Melanotis hypoleucus
Glossy-black Thrush - Turdus serranus
Rufous-collared Robin - Turdus rufitorques

Technical Information

Recorder
UHER 4000 REPORT IC
Microphone
Accessories
Parabola 45.7cm (18in)

Archival Information

Cataloged
Digitized
23 Jun 2011 by David McCartt
Edited

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