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[[underline]]Cyanerpes[[/underline]], Mar. 22, 1958, IV (70) the ♀ which seems to be the thing that discourages the ♂ I am still taking a look at wild Blues from time to time The only pattern which I have seen performed by wild ♂'s which could possibly be the equivalent of the song of lower passerines in the HCN. I have seen apparently single ♂'s sit in the top of bare trees and give single HCN's (with CR) repeatedly for long periods of time. Calling a mate??? [[underline]]Cyanerpes[[/underline]], I March 23, 1958 Barro Colorado Watching the same pair of captive Shinings as yesterday They are behaving much as yesterday. I can amplify a few points in connection with the E St-Bzz-H-SR performances. The ♂ often sort of leans over the back of the ♀ when he goes into E St more or less facing her. It is this which makes it look so much like he wants to mount her. Perhaps he does. The ♀ doesn't have any real CR in her H, but her crown feathers are slightly fluffed. This is the only display posture of this species I have seen which doesn't look very flat-headed. Aside from the one incident yesterday (in which the ♀ gave SR from a flight int. mov. posture), she has never shown any tendency to retreat from the ♂ during her SR's. (Her turning toward him might be considered quite the contrary in fact.) So the escape component in SR maybe definitely weaker than the counteracting motivation -- whatever it may be. I should note, however, that the ♂ of this pair may be [[end page]]