THE AUK: 
A QUARTERLY JOURNAL OF 
ORNITHOLOGY. 
vol. xvi. October, 1899. No. 4. 
WINTER PLUMAGES : —ILLUSTRATED BY THE ROSE- 
BREASTED GROSBEAK ( ZAMELODIA 
LUDO VIC I ANA) . 
BY WITMER STONE. 
Plate IV. 
On the accompanying plate Mr. Fuertes has represented the 
male of the well known Rose-breasted Grosbeak in the plumage 
of the first winter, a condition often known as the ‘ bird of the 
year,’ and also the winter plumage of the fully adult bird of two 
years or more. 
The differences are not very obvious at first sight but will be 
found to be greater upon more minute examination, though they 
are probably more striking in the specimens themselves than in a 
plate where the figures are necessarily reduced. 
Corresponding differences are exhibited by young and old 
winter specimens of a number of our common birds, and the sub- 
ject is one of considerable interest. 
In April, 1896, the writer published a paper on the ‘ Molting of 
Birds,’ in which the seasonal plumages were tabulated, and in the 
last number of ‘The Auk’ Dr. Dwight has published a scheme 
identical with the above except that he proposes the term 
‘ Juvenal ’ for what was formerly known as the ‘ First Plumage ’ ; 
and adds an earlier stage, the 1 Natal Down ’ which was not con- 
sidered in the former paper. 
