a nt Bares SAI OEE SA EI re ee ae ge Ae eae ie ee by igs gy OE tee ME, a ORAS his he eg Sas 
ses atts a RO eines i men EE capt ES Sects: ay! 
5 E ee E À $ Ronee 
ON SOME NEW FORMS OF AMERICAN BIRDS. 607 
In the “ Review” (p. 209) several variations in this species are 
noted ; but at that time there was not a sufficient number of speci- 
mens to warrant our coming to a conclusion as to their value. 
Now, however, we have better materials before us, and upon the 
West Indies, the other from the Mississippi region and middle 
America—find that there are two appreciably different races, to 
be distinguished from each other by points of constant difference. 
All birds of the first series have the bill longer than any of the 
latter, the difference in a majority of the specimens being very 
considerable ; they also have the superciliary stripe bright yellow 
anteriorly, while among the latter there is never more than a trace 
of yellow over the lores, and even this minimum amount is dis- 
cernible only in one or two individuals. The West Indian form 
is, of course, the true Dominica, and to be distinguished as var. 
Dominica ; as none of the synonymes of this species were founded 
upon the Mexican one, however, it will be necessary to propose a 
new name ; accordingly, the term var. albilora is selected as being 
most descriptive of its peculiar features. 
The following Synopsis, taken from typical specimens, shows 
the differences between these two races :— 
low; yellow of chin and ma ing to the mmer, 
A c States of U States, north to Washington. In winter, and pos- 
Sibly all the year, in Cuba, Santo Domingo and J ae Y. DOMINICA. 
Q 61,136, 7, Belize, Hondura Bill (from nostril), -35; tarsus, A 
2°70; tail, 2 perciliary stripe wholly white; yellow of chi maxill 
ered narrowly next bill with whi Hab. In summer, the Mississippi 
Tegion of United States, north to Lake Erie; common in south Illinois. In 
winter, and possibly all the year, in Mexico, south to Guatemala, Yucatan on 
the Atlantic, and Colima on the Pacific side SO eo ager a lt Te, An 
In the lower Wabash valley this form of the yellow-throated 
warbler is rather common during summer, and inhabits chiefly the 
margins of swamps in the bottom-lands, though in spring and 
l it makes occasional visits, with other species, to the orchards 
= Or even the door-yards within the towns. In its manners it re- 
Sembles the black and white creeper (Mniotilta varia) more than 
_ Sny other species, creeping, not only along the branches of trees, 
but over the cornice and eaves of buildings, with all the facility of 
W j , h. 
à nuthate 
