pairs or^ small family groups of parents with one brood of |one or twof young. 



They usually do not associate with mixed flocks or individuals of other species 

 during either the breeding or non-breeding seasons. 



The account in Skutch (1954) ^ould suggest that the general social habits and 

 habitat preferences of Streaked Saltators in Costa Rica and Colombia are much the 

 same as in Panama* 



There is nothing very distinctive about the locomotory movements or intention 

 movements of Streaked Saltators or any other species of the genus with which I am 

 familiar. They all perform ritualized Wing-flicking and Tail-flicking movements 

 which are not significantly different, in form, from those of Ramphocelus species 

 or the Green-backed Sparrow (Arremonops oonirostris ) . As in the latter species, 

 Tail-flicking is often accompanied by fanning of the tail feathers. 



The unritualized and slightly ritualized hostile movements and postures 

 of Streaked Saltators seem to be equally undistinguished in form, but comparatively 

 very rare, under natural conditions. Single individuals arid mated pairs ®£j$kf£$m 

 fj>*lflfl)t> apparently maintain territories or exclusive home ranges. The same individ- 

 uals are found in the same areas for (at least) months on end. But I never saw an 

 actual fight, or even close contact, between presumably territorial neighbors in 

 the wild. The most vigorous hostile reactions observed were performed by a captive 

 individual during disputes with a Buff-throated Saltator. Its hostility took the 

 form of Gaping (sometimes silent, sometimes accompanied by Hoarse Notes - — see 

 below) and ,f head forward threat" postures (sometimes with Gamng, more often without). 



Most of the displays of Streaked Saltators are vocal. Among them are "Tsit" 

 Notes, a variety of Hoarse Notes, Day Songs (including "Duh* 1 Notes, Whistles, and 

 Rattles) , and Dawn Calling. 



f, Tsit ft Notes are sharp, thin, and not very loud. They may be uttered singly 

 or in irregular series. They are uttered in a variety of circumstances, when 



