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[[underline]] Saltator, [[/underline]] Mar. 30, 1958, III  [[circled]] 5 [[/circled]]

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HAC Notes. These sound just like brief, low intensity versions of H Ser. (This is also true of other species of course; and I am now fairly certain that "HAC" and "H Ser" are really intensity extremes of an essentially single pattern) This HAC is also accompanied by pronounced opening of the bill like G This makes it difficult to tell which bird or birds is giving the call, but I am sure that the Streaked has, and I think the Buff-throat has too. It is fairly obvious that the HAC is higher intensity than the silent G in many cases at least. It is also my impression that the HAC may be relatively more aggressive than the G. I think the Streaked, at least, tends to give HAC's when it is pecking at the Buff-throat most vigorously.
 This captive Streaked seems to give many more sharp CN's (all or most of which are ALCN's) than the captive Buff-throat It doesn't actually appear to be more alarmed than the Buff-throat-which would indicate that its ALCN's appear at lower intensities of motivation than those of the Buff-throat.
 Neither of these captive birds has a really distinctive pre-flight posture like that of the Sangre de Toro; but they certainly tend to hold the body fairly horizontal (i.e. in a position quite unlike their usual sitting posture) when they want to fly a lot or very frequently.
  I have twice let both the captive birds loose in the aviary; and each time they have just scuttled off, on foot, into the shrubbery, and stayed skulking . Is this significant? (I think so.)