154 



BIRDS OF THE REPUBLIC OF PANAMA PART 4 



Carriker (1910; Ann. Carn. Mus. vol. 6, p. 749) reports 2 nests on 

 the lower foothills north of the Volcan de Turrialba, Costa Rica, at 

 about 600 m, that on April 20 each held 2 eggs. The eggs were pinkish 

 white, very thickly and finely speckled with reddish brown over the 

 entire surface; average measurements were 24x18 mm. The nests 

 were almost entirely of green moss with a lining of skeletonized leaves. 

 Each nest was placed about 1.6 m from the ground in a small palm in 

 heavy forest cover. 



CATHARUS FUSCATER (Lafresnaye) : Slaty-backed Nightingale-Thrush, 



Zorzal Pizarreno 



Figure 12 



Upper surface dark slate color; side of head and chin deep black; 

 upper foreneck and throat white. 



Description. — Length 160-180 mm. Adult (sexes alike), above, 

 dark slate, the head somewhat blacker, wings and wing coverts slightly 

 grayer; breast, foreneck, and sides gray; center of breast and abdomen 

 white. 



Figure 12. — Slaty-backed Nightingale-thrush, Zorzal Pizarreno, Catharus 



f us cater. 



This wide-ranging species is found in mountain areas from Costa 

 Rica and Panama to the Andes of northwestern South America, where 

 it ranges from Colombia and northwestern Venezuela to northern Bo- 

 livia. Three subspecies are recognized in Panama. 



