FAMILY TYRANNIDAE 39I 



have eggs, when finally one of the pirates gains entry, it carries them 

 to the nest entrance and drops them to the ground. Their usurping 

 the nest cavity of the much larger trogons in a cavity made in a 

 paper wasp's nest seems especially strange. 



With a nest thus secured, the two flycatchers as their only contri- 

 bution carry in small dead leaves to add to the nest lining. Two or 

 three eggs form the set. These show varying shades from dark to 

 grayish brown, with blotches or lines of darker brown forming a 

 wreath around the larger end. Belcher and Smooker (Ibis, 1937, 

 p. 231) describe eggs taken on Trinidad as "rather narrow elongated 

 ovals" and give measurements in two as 23x16 and 22x16 mm. 

 On May 24, 1961. at La Jagua, Panama, I found a pair that had 

 taken the nest of the Cayenne Flycatcher Myiozetetes cayanensis. 

 Their three eggs were heavily incubated so that only two were pre- 

 served. These are oval in shape, and are heavily clouded over the 

 entire surface with rather dull, somewhat grayish brown. Irregular 

 lines and scrawls of a darker brown appear over the surface and form 

 an indistinct cap at the larger end. They measure 21.3x15.9 and 

 21.3 X 15.6 mm. Skutch in Costa Rica, in two sets of three and four 

 of two, described the color as varying through "cafe-au-lait. unsatu- 

 rated brown, or smoky brownish gray with a suffusion of darker 

 brown over most of the surface. About the thick end there is a 

 wreath of deeper, dirty brown in confluent blotches." Twelve eggs 

 that he measured averaged 21.7 X 16.3 mm. 



Skutch reports that the female alone incubates, but that the young 

 are fed by both parents. At hatching, they "bear a short, rather dense, 

 tawny down on much of their dorsal and ventral surfaces." They are 

 fed berries and insects, the latter including dragonflies. 



LEGATUS LEUCOPHAIUS VARIEGATUS (Sclater) 



Elacnia variegata P. L. Sclater, Proc. Zool. Soc. London, vol. 24, 1856 (January 

 26, 1857), p. 297, pi. 24. (Cordoba, Veracruz, Mexico.) 



Characters. — Larger ; usually heavier in body form. 



Measurements. — Males (10 from San Luis Potosi to Tabasco, 

 Mexico), wing 88.1-96.5 (91.8), tail 62.6-68.5 (65.2). culmen from 

 base 13.1-17.7 (14.8). tarsus 16.2-17.9 (16.7) mm. 



Females (7 from Veracruz to Chiapas; 1 from Colombia), wing 

 83.0-90.4 (87.5), tail 60.0-66.3 (63.7), culmen from base 13.1-15.1 

 (14.3), tarsus 15.4-17.9 (16.5) mm. 



Passage migrant ; abundance not known. Recorded to date from 



