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Slate-colored Seedeater

Sporophila schistacea


Paul A. Schwartz
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Rio Las Marias; cf. Cut 10
Portuguesa, Venezuela
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Latitude and Longitude 9.05, -69.75 Map

Age and Sex
Age not specified, Sex not specified
Call; Song
Not Used


NOTES: Neotropical Institute Cut # 15. Bulk reel: 350 208 tape. Weather: Fair. Bird #2 (and another; #1?). Quality: 2 to 1. Level: +3. LN. Territorial conflict between two birds. Bother calls at beginning, then song (not all of the "typical" short phrase kind). Both birds sing but I can't be sure which is in focus from time to time. Quality: 1. Level: +3. 8:30 AM end. Some of this song sounds as if it is overloaded (and some really is) but I believe much of that may be actually in the bird's voice due to the "stress" of the conflict. Quality: 1. Level: +3. b) 8:30 AM beginning. A continuation of above from a new reel of tape. Quality: 1. Level: +3. c) Probably same bird, after playback. Quality: 1-2 & 1. Level: +3. A note made when watching the bird after playback. (It is presumably the same bird as described in Cut 13 & therefore #2) indicates that its bill is not pure corn yellow bult is "pied," marked with fuscous, although the plumage appears fully +/- adult (definitive). I recall that I noted something about this when I first saw the bird yesterday. Foraging Note: This bird (and a female occasionally with it; also bird #1 and another seen there, too) foraged on dead and dried vine tangles and tree twigs. It inspected the surface and the places where the branchlets and twigs joined the larger stems and also seemed especially interested in the tendrils and "things"[?] at tips of twigs (seemed like the actions of some furnariids and warblers). Also, several times I saw it use a rapid side-to-side motion of the head like the hunting technique of some birds of prey. Song Perch Note: Both #2 and #3 sang mostly (almost always) from exposed (i.e. superficial) perches 3-15 m. high (mostly 12-15 m) in dead or dried tangles or exposed lianas. #3 especially was noted to have 2-3 favorite song preches although it also used several other perches on the tangle very close to its favorite "position" (as in the prolonged song of Cut 21). Bird #1 sang from the top of an acacia or the adjacent, more thickly foliaged tree; it was, however, seen to forage on dead or dried vines, etc., as indicated in above note.

Technical Information

Sennheiser MKH 405
Parabola 91.4cm (36in)

Archival Information

24 Sep 2003 by Annette Nadeau
4 Aug 2009 by David McCartt
by David L. Ross, Jr.

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