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Tangara, July 28, 1961, I
 
Someone's last note omitted.

Yesterday morning, I watched a single mexicana feeding in the trees near the station here. Uttered both CN's and CN Trills in flight between trees.

Tangara, I.      
January 31, 1962 
Barro Colorado

Last Sunday, January 28th, at lunch time, I suddenly became aware that there was a nest, containing one rattier well-grown young, in a tree outside the dining room! A nest of PCT's.

I began my observations by watching the parents feed in a nearby tree. Hopping from twig to twig. Uttering lots of single SN's, and a few single CN's, jumbled together. 

Men, when the parents flew to the nest, there was a sudden burst of "Sreee sreeee sreeeee sreeee..." notes. Very rapid. These notes were presumably identical with the notes I called "sreee notes" last year.

Yesterday, January 30th, I watched the birds at greater length, off and on for approximately an hour after dawn. 

The young bird spent the whole of this period sitting on the edge of the nest. Uttering a continuous series of notes at moderate cut equals. "sree sree sree sree see sree see see sree...." Presumably "BC" notes, although some of them had a slight rattle undertone. The young bird not in a rattier, hunched posture which it uttered their notes. No Q. The rhythm of the notes was accelerated, but the individual