64 ElDGWAY on Birds of Calaveras County, California. 



46. Cotyle riparia. 



First plumage: male. Upper parts brown, each feather edged with 

 ferruginous, this edging broadest on the rump and secondaries, narrowest 

 on the crown and nape. Beneath like the adult, but with the pectoral band 

 strongly washed with ferruginous, and the throat thickly spotted with the 

 same color. In my collection, from Rye Beach, N. H., August 24, 1872. 

 Autumnal specimens have the secondaries tipped with white, but not so 

 broadly as in Tachycineta bicolor. 



47. Ampelis cedrorum. 



First 'plumage : female. Above generally duller cinnamon than in 

 adult, with obscure streakings of dusky-buff ; rump grayish-brown with a 

 tinge of olive. Tail narrowly tipped Ayith gamboge-yellow. Two secon- 

 daries on each wing slightly tipped with the red waxen appendages. En- 

 tire under parts brownish-buflf, palest about anal region, deepest on throat 

 and chin ; breast and sides streaked thickly with cinnamon-brown. A 

 dull black line, starting from the nostril, passes through the lore to the 

 eye, where it terminates, embracing, however, the anterior half of both eye- 

 lids. From a specimen in my collection, taken at Upton, Me., August 14, 

 1874. I have seen specimens of this species in the first plumage with 

 not only the secondaries wax-tipped, but several of the tail-feathers also. 

 Nor is this horny appendage peculiar to the male, as has been stated, for 

 several undoubted females before me have it fully developed. Much va- 

 riation likewise obtains among different individuals in respect to the num- 

 ber and position of these appendages. One specimen (a male, Cambridge, 

 March 21, 1870) has every feather of the tail conspicuously wax-tipped, in 

 addition to nine of the secondaries on each wing, while another has the 

 primaries (excepting the first three) tipped broadly with white, and in the 

 centre of each white spot a smaller one of yellow. 



NOTES ON SOME OF THE BIRDS OF CALAVERAS COUNTY, 

 CALIFORNIA, AND ADJOINING LOCALITIES. 



BY ROBERT RIDGWAY. 



Several small lots of birds received at the National Museum 

 from its correspondent, Mr. L. Belding, of Marysville, California, 

 collected chiefly in Calaveras County, in that State, are of great in- 



