1897.] NATURAL SCIENCES OF PHILADELPHIA. 371 



The specimens included in this mottled series are as follows: — 



A. M. N. H., 35,752, etc., 8 specimens, Chatham, Mass., Aug. 27th. 

 W. S., 1,573, Cape May, N. J., Sept. 11th. 



U.S. KM., 59,714, Tehuantepec, Mex., Aug.5th. 



A. N. S. P., 33,744, 34,168, 2 spe'm'ns, Beach Haven, N. J., Aug. 21 . 

 U.S. N.M., 30,310, Spanishtown, Jam., Aug. 20. 



U.S.N.M., 94,714, Hyde Park, 111, Aug. 20. 



U.S.N.M.,111,789, White I., Canada Bay, Aug. 2. 



U.S.N. M.,124,587, Pt. Lookout, Sept. 8th. 



U.S.N.M., 1,011, Devon, Eng, Aug. 26th. 



A. M. N.H., 51,171, Rockaway, L. I., Aug. 4th. 



The next series of eight birds shows the continuation of the molt. 

 In all of these the gray predominates on the back, many of them 

 being practically like winter birds, having lost nearly all the old 

 body feathers. In all, however, the molt is in progress in the 

 remiges, and in most cases in the rectrices also, while in all but the 

 most advanced, remains of the old wing coverts may be seen in 

 varying quantity. 



These birds in detail are as follows : — 



This shows great variability in the time of completing the molt 

 and the relative progress of molt in different parts of the plumage. 



