esas BATCHELDER— AN UNDESCRIBED ROBIN 105 
Middle toe Bill from 
No. Sex Wing Tail Tarsus without claw nostril 
6432 ee 116. 88.5 31-4 20.2 gps 
6433 3 121.6 gt. 31-9 21.1 13:3 
6434 gb m2 go. 3I. 21. 12 
6435 g T22e gl. 32.4 20.1 12.9 
6436 2 E2305 Q245 31.2 20st nee) 
6437 Ys ESS 86.8 31 2s 12.4 
A considerable number of specimens from various northern localities yields 
the following average measurements. 
Middle toe Bill from 
Wing Tail Tarsus without claw nostril 
Males 132.4 103.8 34.2 Zon Ta5 
Females 129.2 99.1 83:8 22.8 13.8 
In order to identify as surely as possible the winter birds which 
came under Catesby’s observation, I have obtained a series of 
robins taken in winter at Raleigh, North Carolina. Save for 
seasonal differences, they all agree fully in plumage with breeding 
birds from the North. They are also practically identical in size, 
as may be seen from the following average measurements. 
Middle toe Bill from 
Wing Tail Tarsus without claw nostril 
20 males 132.4 101.5 33.0 22.6 13.4 
6 females 127.4 96.5 32.6 21.9 13.0 
Of the range of MZ. m. achrustera I can give few details at 
present. Two breeding birds, male and female, from Mont- 
gomery County, Virginia, which I owe to the great kindness of 
Prof. Ellison A. Smyth, Jr., are thoroughly characteristic of this 
form. On the other hand, one from Buncombe Co., N. C., a 
male, taken April 3, and two from Macon Co., a female, May 27, 
and a male, May 29, all in the collection of Mr. William Brewster, 
are intermediate in varying degree between achrustera and migra- 
toria, while another in the same collection, a female taken, May 
4, at Highlands, in Macon County, is, on the whole, to be referred 
to migratoria, 
Probably all the robins breeding in the Carolinas and 
Georgia, outside of the mountain region of these States, will prove 
