226 BIRDS OF THE REPUBLIC OF PANAMA PART 3 



wing 71.2-73.6 (72.6), tail 41.4-^W.9 (43.0), culmen from base 

 18.3-20.8 (19.3), tarsus 25.2-26.5 (26.0) mm. 



Resident. Found locally in forests in the Tropical Zone in Chiriqui, 

 Veraguas, and Bocas del Toro. Now reduced in number in Chiriqui 

 through forest clearing. 



From Chiriqui, Arce in early collections made for Salvin for- 

 warded one from Bugaba, and there is one from this same collector 

 in the National Museum marked Chiriqui without other locality. 

 W. W. Brown, Jr., sent male and female from Divala taken No- 

 vember and December 1900, to Bangs. Three in the California 

 Academy of Sciences from Barriles, at a higher elevation, were col- 

 lected by Mrs. Davidson in December 1929, and February 1931. 

 The U.S. National Museum has four from El Volcan, secured by 

 F. A. Hartman between 1951 and 1956. 



The few known from Bocas del Toro are slightly intermediate 

 toward typical bicolor in somewhat grayish forehead, but are best 

 placed with olivascens. These include three collected by Benson near 

 Almirante, one taken by Wedel at 750 meters on the Boquete Trail, 

 March 17, 1928, and one obtained by Monniche at 1460 meters 

 on this same trail July 14, 1933. 



Alexander Skutch (Anim. Kingd., vol. 60, 1957, pp. 75-80) 

 records an interesting experience near El General, Costa Rica, in 

 which one of these birds joined him regularly as he walked slowly 

 through the forest, to capture the insects that his feet flushed from 

 the leaves. In time, this bird became so tame that Skutch was allowed 

 to touch it with the end of a small stick but not with his hand. The 

 association continued for sixteen months, and during this period was 

 resumed immediately when Skutch returned after an absence of 

 several months. Once the bird accompanied him for a distance of 

 half a mile without hesitation. Always, however, it refused to leave 

 the forest shelter "into the brighter light of neighboring second- 

 growth thickets or pastures." When the bird finally disappeared it 

 was three years before another undertook this association, but in all 

 he had several that followed this friendly custom. Occasionally he was 

 accompanied by two together, possibly a pair. 



A nest that Skutch found was placed in a hollow palm stump, open 

 at the top. He described the two eggs as "creamy . . . thickly marked 

 with elongate blotches of rufous-chocolate, which lay in a nest com- 

 posed of a double handful of leaf fragments, with a thin lining of 

 rootlets and other fibrous material." Both birds of the pair in- 



