200 FIELD MUSEUM OF NATURAL HISTORY ORNITHOLOGY, VOL. I. 



Family Trochilidse. 



Florisuga nielli vora (Linn.). 



Mr. Ferry took a single specimen on Aruba, an immature male 

 beginning to assume the blue throat and which I refer provisionally 

 to this species. The back is slightly more golden green than in other 

 specimens in approximate stage of plumage from northern South 

 America, and there are other slight differences, but not of sufficient 

 importance to characterize it as an insular form, especially in a single 

 specimen. It is probably a straggler from the mainland and not 

 resident, as it has not previously been recorded from the island. 



Chrysolampis mosquitus (Linn.). 

 8 specimens, 6 d\ 2 9 ; common. 



Chlorostilbon caribaeus Lawr. 

 7 specimens, 6 d\ i 9 . 



Family Tyraimidae. 



Tyrannus dominicensis (Gmel.). 

 3 specimens, i d\ 2 9 ; common. 



Tyrannus melancholicus satrapa (Cab. & Heine). 



Mr. Ferry took a female specimen of this Flycatcher May i, 1908. 

 It has not previously been recorded from the island. 



Myiarchus tyrannulus brevipennis (Hartert). 



3 specimens, i cJ 1 , 2 9 . 



Sublegatus glaber Scl. & Salv. 



4 specimens, 2 cT, 2 9. 



Elaenia martinica riisii (Sclater). 

 4 specimens, 2 cT, 2 9 . 



Family Icterida*. 



Icterus icterus ridgwayi (Hartert). 



Mr. Ferry procured two specimens of this fine Oriole, a male and 

 a female, on Aruba, which agree in size of bill with birds from Mar- 

 garita (see note regarding this form under Margarita). Mr. Hartert 



