FAMILY TINAMIDAE VJ 



72.6 X 50.0 mm. While the shell is fully formed, so that the measure- 

 ments are accurate, the full depth of color had not been developed. 

 Four eggs in the British Museum (Natural History) collected at 

 Estrella de Cartage, Costa Rica, by C. F. Underwood (date un- 

 known) are near myrtle green. They measure 74,2x49.6, 71.2x49.0, 

 71.3x52.1 and 71.0x48.9 mm. Two other eggs in the same collec- 

 tion ascribed to A^. b. frantsii, while said by Gates (Cat. Eggs Brit. 

 Mus., vol. 1, 1901, p. 11) to be "of uncertain origin," are listed 

 as purchased from M. Parzudaki, but without other data. They meas- 

 ure 76.6x53.3 and 79.0x52.5 mm. Carriker (Ann. Carnegie Mus., 

 vol. 6, 1910, pp. 377-378) on September 12, 1907, recorded a male 

 accompanied by 5 small chicks, near Uj arras (de Terraba) near the 

 southern end of the western slope of the Cordillera de Talamanca, 

 Costa Rica, 



It is interesting that the eggs of this tinamou are larger than those 

 of the races of the great tinamou, Tinamus major, found in Panama, 

 though the bird itself is slightly smaller in body. 



CRYPTTJRELLUS SOUI (Hermann): Little Tinamou; Perdiz de Rastrojo 



Figure 4 

 Tinamus soui Hermann, Tabl. Aff, Anim., 1783, p. 165. (Cayenne.) 



Smallest of the tinamous found in Panama; size of a large 

 pigeon, with heavy body, very short tail, small head, and slender 

 neck. 



Description. — Length 200 to 230 mm. Two color phases, one grayer, 

 the other more bufify or rufescent. Adult, male, general color, bearing 

 this in mind, is grayish brown above, with a dark gray or blackish 

 crown; below clay color to brown, with foreneck and upper breast 

 distinctly gray and throat white. 



Female, much more rufescent below, except in the race modestus, 

 where the two sexes are nearly alike. 



Back of the tarsus is smooth. Males are slightly smaller in body 

 than females, 



A downy young (either C. s. poliocephalus or C. s. panamensis), 

 less than a week old, is chocolate-brown above and on the sides; 

 forehead and indistinct bars on the crown, flanks, and tail buffy 

 brown; throat buffy white; rest of lower surface cinnamon-brown. 



This downy stage is followed by a second plumage as follows 

 (description taken from American Museum of Natural History no, 

 232292, C. s. panamensis, J* juv,. Chimin, Panama, March 6, 1927) : 

 Crown dusky neutral gray, with the feathers ticked with cinnamon 



