132 DWIGHT 



I. Annual or Single Moult (Postnuptial). 



1. Postjuvenal Moult complete. 



a. Young and adults nearly alike in Winter and Nup- 



tial Plumages. A 



b. Young and adults unlike in Winter and Nuptial 



Plumages. B 



2. Postjuvenal Mo7ilt incomplete, not involving remiges nor 



rectrices. 



a. Young and adults nearly alike in Winter and Nup- 



tial Plumages. C 



b. Young and adults unlike in Winter and Nuptial 



Plumages. D 



3. Young with a First Preniiptial Motdt, following incom- 



plete Postjuvenal Moult. 



a. Extensive, including often rectrices and even a few 



remiges. E 



b. Limited chiefly to the head. F 



II. Seml\nnual or Double Moult (Postnuptial and Prenup- 



tial). 



1 . Preniiptial Monlt complete. G 



2. Preniiptial Moult of body complete (in young including 



often the rectrices and sometimes a few remiges). H 



3. Prenuptial Moult of body incomplete, never involving rec- 



trices nor remiges. I 



4. Preniiptial Moult of body very incomplete and limited 



chiefly to the head. J 



Class A 



Otocoris alpestris Ammodramus maritimus 



" ** praticola Melospiza fasciata 



" " leucolaema Cardinalis cardinalis 



Sturnus vulgaris Petrochelidon lunifrons 



Molothrus ater Chelidon erythrogastra 



Sturnella magna Tachycincta bicolor 



Scolecophagus carolinus Clivicola riparia 



Quisculus quiscula Stelgidopteryx serripennis 



" *' aeneus Vireo noveboracensis (C ?) 



Passer domesticus Icteria virens (C ?) 



