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[[circle]] 195 [[/circle]]
[[underline]] serranus [[underline/]], Dec 14, 1955, VII

gave 3 or 4 HB movements from V, then made mounting int. mov. The actual copulations I observed, (3 or 4), appeared to be just like those of the BhG. [[male symbol]] gave Cop Call, which sounded like "Ka ka ka ka ka…" from a distance. 
One general note. The behavior of this species is becoming more and more obviously similar to that of the BhG in all respects. Just one problem about the O-F-L.C. complex. This appears to be relatively rare, in its complete form. And it may be significant that I could provoke choking at will in the captive bird at the Luria Zoo, while having considerable difficulty in provoking O-F. This suggests that the causal differences between O-F and Ch included something else besides mere intensity (and besides the fact that O-F is a long-distance as well as a short distance complex of patterns). It may be that the Ch of this species has "partly taken the place of" the O-F????

December 15, 1955,
Laguna de Maule
[[underline]] serranus [[underline/]]
Came back to the mainland opposite island in morning. Am immediately mobbed by 6 or 7 birds from island. Aerial hostility much as yesterday. But the wing-beats of birds charging rue, and birds swooping, although emphatic, was no more emphatic or extreme than the wing-beats of Franklin's Gull or the BhG. This is presumably due to the fact that there is almost no wind here this morning. One bird flies around me, giving repeated high, shrill, long LCN's. In the head-down posture, although it shows no inclination to swoop for a long time [[image]] <-- these proportions are about correct, except that the tail is a little too long