eri wl Wricut, Labrador Chickadee at Boston and Vicinity. 169 
probably represent as many different birds on account of the various 
localities and separation of time in which they were seen. No hud- 
sonicus had been noted earlier than October 1. Its appearance was 
upon the first morning of heavy frost, the mercury registering 30° 
with ice skimming the puddles in the road. A considerable migra- 
tory movement had occurred in the night, bringing White-crowned 
Sparrows and Ruby-crowned Kinglets with an increase of White- 
throated Sparrows, Juncos, Myrtle Warblers, and Olive-backed 
Thrushes. White-winged Crossbills and Pine Siskins had already 
been much in evidence about the Highland. My assistant, Mr. 
E. D. Parker, in a recent letter informs me that he heard and saw 
some of these Northern Chickadees about the cottages on the High- 
land at various times up to the middle of December. 
During the week of October 22, Mr. Kirk states that while he 
was in the mountain woods, he found the species “so abundant that 
their notes were heard everywhere.”” The rapid progress of indi- 
viduals southward is indicated by Mr. Brewster’s records at Con- 
cord, Massachusetts, which range from October 7, when the first 
bird was noted, and October 12, when the second bird was noted, 
to the 22d day, when three birds were seen “pecking at gray birch 
seed-cones.” And Dr. Tyler informs me that he recorded on 
October 29 and again on November 3 in his notes respectively for 
those days that he heard the calls of several Chickadees flying 
southward and for a moment alighting in a tall white pine tree, 
which he was almost certain were the notes of hudsonicus, identical 
to his ear with the minor notes of the Acadian, as heard on several 
occasions in the White Mountains and in 1913 when for a few weeks 
the species was common in the Boston region. By the middle of 
November, or thereabouts, the birds seem to have been most 
numerous in this vicinity and not to have diminished in number, 
perhaps, until about December 10, after which date fewer individ- 
uals were in evidence. 
And as indicating the much farther southward movement of the 
migration of hudsonicus, Mr. H. H. Cleaves in a letter to Dr. 
Townsend states that he saw four individuals at Staten Island on 
December 5 and that these birds were first seen on December 2. 
Dr. Townsend has later received from the American Museum of 
Natural History a specimen taken at Staten Island on January 
