Paul A Schwartz
17 Dec 1973
- Estacion Biologica Rancho Grande
- 10.3666667 -67.6833333
- NAGRA UNSPECIFIED IV
- Sennheiser MKH 405
NOTES: Neotropical Institute Cut #5. Bulk reel #525
EBRG captive birds.
a) ~7:15 AM. Song probably by R. yellow, although at times it seems two birds are singing and if so I don't know which is the other, but probably L. orange. Quality: 2. Level: +3. 3.75 & 7.5 ips. 203 tape. LN. No parabola?
b) 8:30 AM. Ditto. (Alt. bird could be L. green.) Quality: "2." Level: 0. 36" parabola? 7.5 ips. 203 tape. LN.
c) 9:20 AM. Song by L. green (however, it seems another bird is heard too; it may be L. orange). Quality: 3. Level: +3. 36" parabola. 3.75 ips. 203 tape. LN.
At very end R. yellow begins to be heard rather loudly. (I think the reflector was focused on R. yellow's most usual perch.)
d) 139 tape. 11:00 AM. Although it seems at times there are two birds singing, I think there is only one (= R. yellow). Quality: "2". Leel: 0. 36" parabola. 7.5 ips. Std.
e) 12:00 M. This is apparently all by R. yellow. Quality: "2". Level: +2. 36" parabola. 7.5 ips. Std.
This is a sample portion of the total recordings made at this time. The birds, when singing, sing almost continuously and in general it seems like "soliloquy" or self-song (although R. yellow sings with a loud voice, the other two sing more quietly). There seems to be no territorial significance to this song at this time.
Note that R. yellow sings mostly an "alternate" song (or the last part of its "complex" song) and only occasionally gives a hint of the "regular" pattern (i.e. the noted part of its "complex" song and the apparent "simple" song).
Note, however, that L. orange uses this pattern (but not always) from my earliest recordings of it.