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BIRDS OF THE REPUBLIC OF PANAMA— PART 4 



Copete (2100 m), above Boquete, are now at Ohio State University, 

 and Davidson (Proc. Calif. Acad. Sci., ser. 4, vol. 23, 1938, p. 260) 

 collected a male at Quiel (2340 m) above Boquete. I have collected 

 Vireo carmioli on the west face of Volcan de Chiriqui at 2250 m, on 

 Cerro Punta at 2100 m, and on Cerro Picacho at 2280 m. 



Figure 20. — Yellow-winged Vireo, Vireo Aliamarillo, Vireo carmioli. 



Vireo carmioli is a bird of the high tree crowns, where I have some- 

 times watched one move slowly in typical vireo fashion and then be- 

 come more active, almost like a warbler; the large broad head and small 

 bill give this bird a curious appearance. Eisenmann (Condor, 1962, p. 

 505) reported only once seeing it as low as 13 m from the ground, but 

 whether it normally nests that far from the ground is not yet known. 

 On October 1, 1965, he saw 1 not 7 m up in a small roadside tree above 

 Cerro Punta. The only nests that have been discovered are 2 found by 

 Skutch (Publ. Nutt. Orn. Club, no. 7, 1967, p. 131) in Costa Rica; 

 both were in trees in pastures, 3 and 8 m from the ground. The diet 

 seems to be insects and spiders gleaned from leaves and bark and, oc- 

 casionally, picked from a leaf while the bird hovers before it. Some- 

 times it joins mixed species flocks of other insectivores. 



These vireos seem to sing during much of the year; Skutch {op. cit. ) 

 has heard it in Costa Rica from early March to November. Ridgely 

 {in litt.) has heard it in Panama in January. In Panama, Eisenmann 

 {op. cit.) characterizes the song as a husky "cheeyah . . . cheeyou . . . 

 chipcheewee, repeated a few times, with a long pause between repeti- 

 tions." Another song phrase or call is peeacheewit. 



