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Rhamphocelus [[Ramphocelus]], Mar. 28, 1961, II

Then he flew back and landed beside the female again. Again one or both birds uttered MCN's as before. This time the female also peeked at or toward the male once.

Then the male flew away and sat by himself again. Began to utter "Keeyoo" song. A series of "Keeyoo" notes, occasionally interrupted by a single "Kew." Uttered from an apparently completely unritualized sitting posture.

Then the male stops singing. Flies to the female, lands beside her in a "breast-low" St Posture like the one drawn on May 5, 1960, p.64. Both birds quite silent. Then male relaxes, flies away.

Rhamphocelus [[Ramphocelus]], I

March 25, 1961
Barro Colorado

Yesterday afternoon, a snake tried to get at the fledglings in the nest by my house. Both young hopped out immediately and scurried away (silently). The mother became greatly upset and uttered lots and lots of ACN's while she hopped and flew all around the neighborhood at a frantic rate. This attracted a male and another female or fully-grown Sangre do Toro who also became very excited and uttered lots of ACN's. The behavior of these Sangre do Toros also attracted many other birds of other species.

I chased the snake off, and put the young back in the nest. But they left for good this morning.

Both yesterday and today I picked up both of the fledglings several times. Each time they were picked up, they uttered lots of notes which were very much like the HAC of adults, but not very different from the usual Begging Notes. I also think that these HAC Notes tended to intergrade