116 



PROCEEDINGS OF THE ACADEMY OF 

 II. SHOWING RELATIVE MOLT OF RECTRICES. 



[1896. 



Adults in Annual Molt. 



Dryobates villosus, 26,644, A. N. S Old. 



Dryobates pubeseens, 30,750, A. N. S Old. 



Middle 

 Pair. 



Dryobates villosus, 20,646, A. N. S 



Colaptes auratus, 26,694, A. N. S , 



Colaptes auratus, 26,69.3, A. N. j 



Dryobates pubeseens, 26,651, A. N. S. 



Old. 

 Old. 



2.5 

 2.0 



E.G. 



E.G. 



2.5 

 2.0 



E.G. 



E.G. 



E.G. E.G. 



.1 



E.G. 

 F.G. 

 E.G. 

 F.G. 



Tachycineta bicolor, 28,-595, A. N. 

 Tacbvcineta bicolor, 1,660, W. S.. 

 Tachycineta bicolor, 1,921, W. S.. 



Old. 



Old. 



1.0 



Cyanocitta stelleri, 30,92.3, A. N. S 3.2 



Spizella pusilla, 1,170, W. S 2 



Plectrophenax nivalis, 26,987, A. N. S 2.0 



Passerina cyanea, 28,516, A. N. S 1.5 



Myiarchus cineraseeus, 29,456, A. N. S E.G. 



Lanius ludovicianus, 1,429, W. S E. G. 



Seiurus aurocapillus, 1,138, W. S 1 



Icterus galbula, 28,096, A. N. S ! F.G. 



Melospiza fasciata, 1,667, W. S ' F.G. 



Ammodramus caudacutus, 1,155, W. S | E. G. 



Old. 



.8 



2.0' 



1.5 



.5 



1.7 



.1 



E.G. 



F.G. 



F.G. 



Old. 

 1.5 

 2.0 

 1.5 

 1.0 

 1.8 

 .1 

 .1 



F.G. 



E.G. 



Old. 



Old. 



2.5 



1.7 



2.2 



2.5 



.5 



.6 



.2 



.1 



Quiscalus quiscula, 28,117, A. N. S Old. 



3.6 



2.0 



1.5 



1.2 



1.0 



The four divisions represent four styles of molting. 



Numerals denote the amount in inches that the new feathers lack of their full growth. 

 " E. G." denotes " Full Grown." Dashes show that the old feather has been shed but the 

 new one has not yet appeared. 



III. SHOWING RELATIVE MOLT OF WING FEATHERS. 



Molothrus ater, 28,028, 



A. N S.* 



Agelaius phoeniceus, 



1,.579, W. S 



Dolithonyx oryzivorus, 



28,000, A. N. S 



Piraiiga erythromelas, 



1,904, W. S 



Colaptes auratus, 1,.532, 



W S 



Quiscalus quiscula, 1,900, 



VV. S.* 



Quiscalus quiscula, 1,541, 



W. S * 



Sturnella magna, 1,191, 



W. S 



Chaetura pelagica, 1,521, 



W. S 



Plectrophenax nivalis, 



26,987, A. N. S 



Dolichonyx oryzivorus, 



32,783, A. M. N. H.. f. 

 Melospiza fasciata, 1,667, 



W.S 



Tachycineta bicolor, 



1,921, W.S 



* Molt from first plumage, t Spring molt. 

 All others are adults in annual molt. 



