204 BIRDS OF THE REPUBLIC OF PANAMA PART 3 



bottom of the open cup as support for the lining of long, slender fibers. 

 This nest measured as follows: outside height and diameter 125 mm, 

 diameter and depth of cup 70 mm. The two eggs, slightly incubated, 

 are between oval and subelliptical in form. The ground color is light 

 pinkish white, almost obscured by an overlying wash of tiny dots 

 and indefinite lines, with larger markings of dull rufous and rufous- 

 chocolate that cover the entire surface. The lines and markings in 

 general are longitudinal. Measurements are 24.0x18.0 and 24.5 X 

 18.1 mm. 



A. O. Gross found nests with eggs on Barro Colorado Island, 

 July 25 and August 5, 1925, and July 13, 1927. The first mentioned 

 (Gross, Ann. Rep. Smithsonian Inst, for 1926, 1927, p. 338. pi. 8), 

 slightly elevated among the leaves of a low plant, was "made of coarse 

 stems and roots and contained 2 eggs." Carriker (Ann. Carnegie 

 Mus., vol. 6, 1910, p. 616) records a nest found at Guapiles, Costa 

 Rica, July 13, 1905, with two fresh eggs as follows: "The nest was 

 made of leaves, weed-stalks, and roots, lined with fine brown weed- 

 fiber, and placed in a cluster of ferns in the thick jungle, about a foot 

 [30 cm.] above the earth. The eggs are whitish, but suffused over 

 nearly the whole surface with reddish-purple, and speckled, scrawled, 

 and blotched with deep purplish-chestnut and lilac, gathered about the 

 large end in the form of a cap. Measurements: 22 X 17.5 and 22.5 X 

 17 mm." 



Goldman and Gross both found females on the nest, and recorded 

 that when flushed they moved along the ground, feigning injury, to 

 attract attention. Willis and Oniki record incubation and feeding the 

 young by both parents. The nesting period on Barro Colorado 

 Island, from April to November, is in the rainy season. 



Stomachs of those that I have examined were filled mainly with 

 remains of small insects that included ants, an elaterid, a carabid, a 

 curculionid, a cerambycid, a chrysomalid, other beetles, egg case of 

 a roach, an acridid, a locustid, parts of a heteropteran ; remains of a 

 caterpillar, and bits of earwigs. Added to these items one held a 

 2-inch-long centipede, others bits of spiders. In one I found two 

 elongated seeds. 



In early years there was confusion as to the identity of this bird. 

 As noted in the synonymy above, Sclater and Salvin in 1865 gave 

 this typical race the name inimaciilafa based on specimens received 

 from McLeannan, which is antedated by Sclater's own name exsul of 

 1859. The two species are illustrated under the correct names 

 in Salvin and Godman (Biol. Centr.-Amer.. Aves. vol. 4, plate 51), 



