240 Goss on Birds of San Pedro Martir Isle. [July 



From the foregoing ciescription and measurements of the eggs 

 of the different species of tlie genus Sphyrapicus., it will be seen 

 that the eggs of 6". varius are the smallest ; those of .5. varius 

 niichalis come next in size ; then 6'. ruber., and those of S. 

 thyroideus are the largest. 



The following additional species of the Family PicidiE, occur 

 in the vicinity of Fort Klamath, Oregon. 



Dryobates villosus harrisii. Ceophlceus pileatus. 



Dryobates pubescens gairdnerii. Melanerpes formicivorus bairdi. 



Xenopicus albolarvatus. Melanerpes torquatus. 



Picoides arcticus. Colaptes cafer. 



All of these species breed there moi-e or less commonly, except- 

 ing Melanerpes formicivorus dairdi, which occurs only as a 

 straggler on the eastern slope of the Cascade Range, owing to the 

 absence of oaks, but is quite abundant on the western side of these 

 mountains, wherever oaks are found, especially so near Ashland 

 and Jacksonville, Oregon, in the Rogue River valley. I shall 

 have something to say about the nests and eggs of some of these 

 species in a future paper, having found them all breeding there, 

 and taken the eggs of all excepting CeopJilccns pileahis. 



NEW AND RARE BIRDS FOUND BREEDING ON 

 THE SAN PEDRO MARTIR ISLE. 



BY N. S. GOSS. 



The island, a rock about one and a half miles long, nearly as 

 l)road, and 1045 feet in height, is situated in the Gulf of Cali- 

 fornia, a little north of latitude 28°, and not far from midway be- 

 tween shores. 1 was enabled to visit the same through the 

 kindness of Mr. E. J. Reed, of Guaymas, Mexico, agent for the 

 San Francisco Phosphate and Sulphur Company. I landed 

 from their little steamer that takes out supplies, March 15, iSSS, 

 and remained until the zSth. The Company has a large force of 

 Yaquie Indians collecting the guano that has formed a crust on 

 the rocks of from one to foiu' inches in thickness. The island 



