Paul A Schwartz
9 Jul 1968
- Rio Grande; 1 km north of km 7.5; El Palmar
- 7.9666667 -61.8833333
- 30 meters
- NAGRA III
- Electro-Voice 650
- Parabola 91.4cm (36in)
NOTES: Neotropical Institute Cut # 33. Bulk reel: 259
Natural drums (note that these are more "standard" in length) and some "chatter" at end as another bird arrived. (I had shifted focus between second drum and then went back after the "chatter" started.) Then more drums and in this latter part are also heard drums and vocalizations by Veniliornis sp. (probably cassini), (two males and one female involved).
Note: The rattle call heard checks OK vs. the recordings of V. cassini from Rio Grande.
The only thing it could probably be, other than V. cassini, would be V. passerinus, whose voice I don't know.
Note: At very end (open mike) I added two drums from 11/3/68, same site, because of the excellence of this sound.