560 BIRDS OF THE REPUBLIC OF PANAMA — PART 3 



which the female joins. (While his notes, made in Costa Rica, refer 

 to the race subpagana, this song is heard also in Panama.) 



The nesting season, as stated, begins at the end of January, and is 

 most active from early March into June. Nests are compactly made, 

 open cups, well supported in forks of open branches. Skutch (loc. 

 cit., pp. 290-292) found the males aiding regularly in building, though 

 he believed that the bulk of the work was performed by the females. 

 The base and walls of the nest are formed of bits of filamentous or 

 soft vegetable material, bound by cobweb, with the exterior covered 

 by gray and greenish lichens and fragments of moss. The fairly 

 abundant lining is of feathers. 



The two eggs in the usual set are dull white marked with spots of 

 dull to cinnamon-brown varied to lilac, mainly in a circlet around the 

 larger end. A set of two, the usual number, collected by Major- 

 General G. R. Meyer at Summit, Canal Zone, April 19, 1944, measured 

 21.8x15.7 and 22.3x16.2 mm. Another set of two recorded by 

 Hallinan (Auk, 1924, p. 316) is described as "dull white, with red- 

 dish brown and faint purple spots which were almost entirely con- 

 fined to the larger end." These measured 21.8 X 16.5, and 21.6 X 16.0 

 mm. (Other nests described by this author may be of uncertain 

 identity, as one is said to have held four eggs, and another three.) 



Skutch (loc. cit., p. 303) says that the nestling (of the race E. f. 

 subpagana) at hatching "has short, whitish down in restricted linear 

 tracts along the middle of the crown, above the eyes, across the hind- 

 head, down the middle of the back, along the flanks, and on the wings 

 and the outer side of the thighs." 



These elaenias are seen regularly capturing small insects on the 

 wing and also coming constantly to various berry-bearing trees. 

 Some of the fruits eaten are of fair size with large pits. 



MYIOPAGIS VIRIDICATA ACCOLA Bangs. Greenish 

 Elaenia, Monona Verdosa 



Myiopagis placens accola Bangs, Proc. New England Zool. Club, vol. 3, 

 January 30, 1902, p. 35. (Boquete, 1220 meters elevation, Chiriqui, Panama.) 



Rather small ; slightly crested ; olive-green above ; with crown 

 darker at sides, and a large, partly concealed, central patch of bright 

 yellow. 



Description. — Length 125-138 mm. Adult male, center of crown 

 bright yellow, with anterior area basally more or less white ; sides of 

 crown grayish brown to olive, with the bright central color tipping 

 the lateral and frontal feathers ; back, scapulars, and upper tail coverts 



