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15

 June 27, 1960 II

were unusually loud & long in such circumstances. Such notes may have been "transitional" to chirps, but they were not at all harsh). Then it uttered Trill's when frightened.

U Remained silent for quite some time, in the usual way, when isolated (in the light), and then uttered a few LC Notes. Then uttered a few Peeps as greeting. Then uttered a few chirps when handled. 

This bird would not follow me at all.

It uttered chirps, and then Peeps, when frightened. Then it uttered more chirps, followed by a few Peeps, when poked.  No Trills at anytime! 

The fact that this bird did not follow and did not utter Trills might suggest that the Trills are uttered when some gregarious motivation is activated in addition to and in conflict with hostility.

WR Remained silent when first isolated (in the light) and then uttered quite a lot of loud LC Notes. Uttered both LC Notes and Peeps as greeting. 
 
Remained silent when handled, except for one brief Peep. Uttered a single chirp when picked up a second time. Then uttered Peeps when following me (very briefly and poorly). Also uttered Peeps when running away from me. Then uttered chirps when frightened, and both chirps and Peeps when poked.

This bird would also appear to have lost or be in process of losing the Trill pattern.

WB Uttered LC's when isolated. Then uttered Peeps as greeting. Then uttered Peeps when following me(although this following was not close or long-sustained). Then uttered Trills and Peeps when poked. Then utters Trills and Peeps when frightened. Then utters chirps when handled.