THAYER AND BANGS : PEARL ISLANDS BIRDS. 153 



Remarks. — The three specimens contained in the present collection agree 

 with one that Mr. Brown took in San Miguel Island on his fii-st trip in 1900, 

 and differ, as pointed out above, from all examples of true M. naevius we have 

 examined. The bird is rare in the islands, and though specially on the look- 

 out for it, Mr. Brown was unable to get a large series. 



* 56. Empidonax traillii traillii (Aud.). 



One adult male, Saboga Island, April 13. 



*56. Empidonax traillii alnorum Brkwst. 



Five adults, both sexes, Saboga Island, April 11 to 13. These have been 

 kindly identified for us by Brewster, who pronounces five out of the six Empi- 

 donax taken by Mr. Brown alnorum and one true traillii. 



*57. Horizopus virens (Linne). 

 Four adults, both sexes, Saboga and Pacheca Islands, April 6 to 14. 



68. Myiarchus ferox panamensis (Lawk.). 



Twenty-four specimens, both sexes, San Miguel, Saboga, and Pacheca Islands, 

 February, March, and April. 



*69. Myiarchus crinitus crinitus (Linne). 



Two adult males, Saboga Island, April 9 and 13. 



By a mistake Nelson recorded Myiarchus nigriceps Scl. from the Pearl Islands 

 in his Revision of the North American Mainland Species of Myiarchus, 

 Proc. Biol. Soc. Washington, vol. 17, pp. 49-50, March 10, 1904. The 

 specimens collected by Mr. Brown loaned at the time were from San Miguel 

 in the Sierra Nevada de Santa Marta, which Nelson mistook for San Miguel 

 Island. The species has never been taken in the Pearl Islands. 



* 60. Tyrannus tyrannus tyrannus (Linne). 



Seven specimens, both sexes, San Miguel and Saboga Islands, March 18 to 

 April 8. 



