them throughout the day. The temporal distribution of these patterns is very 



reminiscent of the "Rattle - Flourish Day Songs' 1 of Brown-capped Bush-tanagers 



(Chlorospingus opthalmioua ) . 



Some of the probable relationships between the individual components of 

 Streaked Saltator Day Songs and vocalizations of other finches and tanagers 

 will be discussed in more detail below, after the corresponding patterns of other 

 saltators have been de scribed . 



The Day Songs of Streaked Saltators in central Panama are quite stereotyped 



in form. Only two variations are common # Sometimes the terminal Rattle is 



omitted. Sometimes an extra, fourth, introductory "Duh 11 Note is inserted before 



the Whistle. 



There may 



, x e rent 



ices between the Songs of Streaked Saltators 

 in different regions. All the Song phrases of one individual studied near Gerro 

 Punta on the Volcan de Chiriqui in western Panama were oomposed of introductory 

 notes like those of the birds in central Panama, followed by one long Whistle, 

 followed by one short Whistle, followed by another »'Duh» Note. The Whistles them- 

 selves had a faint rattling undertone, but there were no pure Rattles. The only pat- 

 tern of Costa Rioan Streaked Saltators described by Skut.,^ i -\t be closely 

 related to part of the Songs of the Panama birds is H a refrain of four or five ;r 

 whistled syllables, forming. an exquisitely modulated crescendo , and with the last 

 syllable the longest 11 . 



All Panamanian Streaked Saltators utter their Day Songs from largely or 

 completely unritualized erect sitting postures (see figures la and lb). 



The major^vocal patterns (or groups of patterns) of Panamanian Streaked 

 Saltators are quite "discrete" # They do not intergrade with one another to any 

 appreciable request. In this respect, Streaked Saltators resemble most other 

 finches and tanagers and are very different from Yellow-rumped Tanagers. 



Three copulation attempts by Streaked Saltators were observed in central 

 Panama. Two of these began when the male flew straight on to the back of the 



