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Giant Cowbird

Molothrus oryzivorus

ML60759


©
Paul A. Schwartz
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Cumboto
Miranda, Venezuela
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Latitude and Longitude 10.4833, -67.7667 Map

Age and Sex
Age not specified, Sex not specified
Sounds
Call; Non-vocal
Behaviors
Breeding
Courtship, Display, or Copulation
Tags
;
Playback
Not Used

Comments

NOTES: Neotropical Institute Cut # 1. Bulk reel: 93 The sounds of the displaying male are not loud. They seem to consist of a grating hissing sound, some deep grunts, apparently bill-snapping, some very high-pitched squeaks. Quality: 3+. Level: -3, 0. 203 tape. 3.75 ips. Copy from original at 7.5 & filt. 500/9kHz [rest of recordist's note too small to read]. The display consists of male's erecting his ruff so that it stands straight up and forms a shield frame all around the head. The head is pointed down with the bill against the ruff. The resulting pattern is a wide, shiney greenish-black frame with a black area in the center (the head) and the two light spots which are the eyes (these are buffy colored, very light, with a slight orangish cast. [App. in some populations, or individuals? ages? the eyes are red]). (Female's eyes are same color.) At times the male moves right over to the female and sort of touches, almost pushes (leans) against her with this ruff-head pattern. Also heard in this recording are calls by female. The "clop" calls at end are by Aramus guarauna. Then added a portion of the original recording: some calls by female; two grunts and "hiss" by male. Quality: 3+. Level: +3. 175 tape. 7.5 ips original record. Other Behaviors: Perform Visual Display.

Background Species

Limpkin - Aramus guarauna

Technical Information

Recorder
NAGRA III
Microphone
Electro-Voice 650
Accessories
Parabola 91.4cm (36in)

Archival Information

Cataloged
4 Sep 2003 by Annette Nadeau
Digitized
28 May 2009 by David McCartt
Edited
by David L. Ross, Jr.

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