Martin - 
I'm leaving you these tapes; they’re recorded at 15”/3ec., so 
on your tape recorder you’ll only be able to hear them at £ speed (which is 
usful to study the structure of a cill) until you can get the machine ad- 
apted to 15”/ sec (which I think you need). They can also, of course, be 
used for audiospectrographs. ,, 
j v ■ * 
(1) Tanagridae: 
a red and black Euphonia recorded in sec nd growth near 
Guayaquil, Ecuador, 31 January, 1962. 
(2) Tanagridae: 
a similarly patterned yellow and dark blue Euphonia ” chattering” , 
recorded at the same t'roe and place. (So far as I know, this one does not have 
the harsh call of the other, but a clear ’’song” of 4 or more notes, whistled. 
1 
.T T\ - 
<V 
(3) Thraupis palraarum- Panama, Rio iedras, last field before ford, 20 Feb., 
1962, call of one bird flying overheed. 
(4) Thraupis episcopus. Panama, mouth of Rio Piedras; 22 Feb., 1962 - pre- 
sunrise "singing” at 0620. 
(5) Saltator maximus. Panama, Rio Piedras; 24 Feb., 1962 - fi ^ht and chases 
in bushes, 3 or possibly 4 birds. 
(6) Ramphocelus icteronotus: Panama, ^io Piedras (near mouth); 23 Feb., 1962, 
Galls of a male perched in a Poronoro shrub (Cochlospermum) 
at 0625. 
(7) Saltator maximus - one of £he birds from selection (5) calling at 0700, 
some time before the recording of selection (5). 
( 8 ) * 
Canii Zone, B.C.I. Dawn song from edge of Clearing, top 
of a tall tree on W side near new Lab; we couldn’t see the 
bird in 5 min of performance , then it flew farther into forest, 
sang from another tree briefly and disappeared. In flight a 
saltator-sized bird. 3 March, 1962. 
Panama, Rio Piedras, 2nd growth before gate to first 
pasture; 4 March, 1962 - unknown predawn song at 0601, 
possibly a Blue-black Grosbeak. 
(10) Pitylus grossus (Slate-colored Grosbeak): C.Z., B.C.I. ; 10 March, 1962. 
Calling about 0300 from top of crown of a forest tree near the 
Clearing. 
(11$) Saltator atriceps: Panama, Rio Piedras beyond the ford; 14 March, 1962. 
Calling in a large fig about 0620. 
(12) Tachypnomss rufous: Panama, Rio Pied'’as,bBushy hillside near start; 13 
March. Predawn calling of male perched conspi couusly on 
top of a bush; calling with crown ruffled (when seen 
subsequently) . 
(13) Chlorospingus ophthalmicus, Panama, Cerro Punta; 30 March, 1962. 0700. 
•UL V ^ \AJ"TT 
Ce 
n. 
V* 
-i— 
L-j (f'. <■- \j§LV v 'V c 
■Jt) 
