1880.] DR. O. FINSCH ON THE BIRDS OF RUK. 575 



notice of this collection —the more so as Mr. Kubary has kindly fur- 

 nished me with a list of all the species observed or obtaiaed by him ; 

 so that the following list will contain a full enumeration of the birds 

 of Ruk. Of the total number of 29 species, only two are peculiar 

 to the islands {Dri/mophlla rugensis and Mi/iagra oceanica). Tlie 

 species marked in the subjoined list with an asterisk I did not in- 

 spect myself, but insert on the authority of Mr. J. Kubary. 



1. CoLLOCALiA vANicoRENsis (Quoy & Gaim.). 



Agrees in every respect with specimens from the Palao3 and 

 Kushai. 



2. Myzomela rtjbratra (Less.). 

 Agrees with Ponape specimens. 



3. Calamoherpe syrinx, Kittl. 

 Agrees with Ponape specimens. 



4. ZosTEROPS SEMPERi, Hartl. 

 Exactly like specimens from Ponape. 



5. Metabolus rugensis. 



Colluricincla rugensis, Jacq. et Puch. Voy. Pole Sud, iii. p. 62 ; 

 Atlas, t. 13. 



Metabolus rugensis, Bp. C. R. xxxviii. p. 650 (1854). 



Native name " Una." 



The adult males of this species in full dress (in July) are of a 

 silky white, with the front, lores, lower part of cheeks, chin, and 

 throat of a dark shining black. In August the same birds are of a 

 uniform dull soot}- black. Young males and females (in July and 

 August) are above bright cinnamon-colour, darkest on the wings 

 and tail ; below of a light pale rusty colour, passing into whitish in 

 the female, and of a nearly isabelline-white in the male. From this 

 dress the latter change into that of the old male, as one specimen 

 before me already shows the development of the black face. 



Young females change from the cinnamon into the black garb. 



Mr. Kubary also found nests and eggs of this species, of which I 

 have examined specimens. The nest is of a distinctly cup-shaped 

 form, about 1 1 inch deep by nearly 3 inches in diameter ; the walls 

 are thick, and consist entirely of fine halms of grass and fibres. The 

 nests are placed in forked branches of trees, and contain one or two 

 eggs. The latter are cream-coloured, speckled all over with rufous, 

 which at the large end are confluent, and cover this part all over 

 with rufous speckles. Some eggs have more of a pale reddish 

 ground-colour. 



6. Myiagra oceanica, Jacq. et Puch. Voy. Pole Sud, Zooi. iii. 

 p. 77 ; Atlas, pi. 12 bis, f, 1 & 2. 



The nest and eggs were obtained by Mr. Kubary. The former 



